Entries |
Document | Title | Date |
20080198232 | Digital Video Media Duplication or Transmission Quality Measurement - A system and method for measuring video quality of a video image, wherein the system comprises a source device comprising an original video image; a receiver comprising a received video image; a storage device adapted to store video images from the source device and the receiver; a decoder connected to the receiver, wherein the decoder is adapted to compare display attributes of the received video image with creation attributes of the original video image; and a processor adapted to attribute an objective standard to the received video image based on the comparison between the display attributes and the creation attributes, wherein the objective standard comprises a video pixel size component, a video motion rating component, a video clarity rating component, and a pixel color rating component. | 08-21-2008 |
20080211917 | Digital Video Media Duplication or Transmission Quality Measurement - A system and method for measuring video quality of a video image, wherein the system comprises a source device comprising an original video image; a receiver comprising a received video image; a storage device adapted to store video images from the source device and the receiver; a decoder connected to the receiver, wherein the decoder is adapted to compare display attributes of the received video image with creation attributes of the original video image; and a processor adapted to attribute an objective standard to the received video image based on the comparison between the display attributes and the creation attributes, wherein the objective standard comprises a video pixel size component, a video motion rating component, a video clarity rating component, and a pixel color rating component. | 09-04-2008 |
20090021584 | CAMERA - A camera which can accurately inform a photographer of the number of times image taking is possible is disclosed. The camera comprises an image-pickup device which photoelectrically converts an object image to an electric signal, an image processing circuit which applies image processing to the image data obtained by using the image-pickup device and generates processed image data, a recording circuit which records the processed image data in a recording medium, a control circuit which causes the image processing circuit to perform image processing on the image data obtained through one-time image taking under a plurality of different conditions to generate a plurality of the processed image data, and an information output unit which outputs information on the remaining number of times image taking is possible. | 01-22-2009 |
20090027503 | ERROR DETECTING APPARATUS - An error detecting apparatus can diagnose what is happening with the line through which the image signal is passed, and determine a cause of trouble when the line diagnosed as going out of order. The error detecting apparatus comprises an error detecting circuit for detecting a direct voltage from an output line through which an image signal is outputted to a display apparatus from an image signal outputting apparatus, and a CPU, wherein a zener voltage of a zener diode is within a first range, the CPU is adapted to make a decision that the output line is in the output-line-to-power-line short state when a voltage of a cathode of a zener diode is within the first range, a voltage of the electric potential regulated by a pull-up circuit is within a second range, the CPU is adapted to make a decision that the output line is in the electrically-disconnected state when the voltage of the output line is within the second range, an output voltage of a smoothing circuit is within a third range, the CPU is adapted to make a decision that the output line is in the normal state when the output voltage of the smoothing circuit is within the third range, a reference potential defined by a ground line is within a fourth range, the CPU is adapted to make a decision that the output line is in the output-line-to-ground-line short state. | 01-29-2009 |
20090059010 | Method and apparatus for evaluating performance for a video broadcast and/or multicast - There are provided methods and apparatus for measuring a received quality of at least one of a video multicast and a video broadcast for a plurality of users. A method includes receiving ( | 03-05-2009 |
20090073266 | METHOD AND SYSTEM FOR CAPTURING AN IMAGE FROM VIDEO - A method including presenting a video sequence on a display where the video sequence includes video frames, calculating a quality indicator with respect to the video frames and automatically indicating which video frames meet or exceed a predetermined image quality threshold depending on the quality indicator. | 03-19-2009 |
20090086028 | CATV Digital Receiver Intermodulation Susceptibility Tester - A method and apparatus are provided for testing susceptibility of a receiver to intermodulation distortion of a digital channel, the method including selecting a first digital channel from channels in a composite signal, determining a first power measurement from the first digital channel, determining a total power measurement from other channels in the composite signal, and determining susceptibility of the first digital channel to intermodulation distortion by comparing the first power measurement and the total power measurement with intermodulation distortion characteristics of the receiver. | 04-02-2009 |
20090128633 | System For Detecting Sequences Of Frozen Frame In Baseband Digital Video - An apparatus and method of evaluating whether an image under test is similar to a reference image, the method comprising performing a test on pairs of blocks in turn, each pair of blocks comprising a block of the image under test and a corresponding block of the reference image, the test comprising calculating a difference measure indicative of the difference between the blocks and comparing the difference measure to a threshold, wherein the test is passed if the difference measure betters the threshold, and the image under test and the reference image are deemed to be similar if the test is passed by all of the pairs of blocks. | 05-21-2009 |
20090135255 | METHOD AND APPARATUS FOR DETECTING A NOISE VALUE OF A VIDEO SIGNAL - A method for detecting a noise value of a video signal comprises the steps of determining a spatial domain difference according to a plurality of pixels of a first frame of the video signal, determining a temporal domain difference according to the pixels of the first frame of the video signal and a plurality of pixels of a second frame of the video signal, and generating a noise value of the first frame of the video signal according to the spatial domain difference and the temporal domain difference. An apparatus for detecting a noise value of a video signal performs the aforementioned method. | 05-28-2009 |
20090153668 | SYSTEM AND METHOD FOR REAL-TIME VIDEO QUALITY ASSESSMENT BASED ON TRANSMISSION PROPERTIES - A system and method for video quality assessment includes utilizing codec auxiliary information related to the encoding and decoding process to enhance performance of picture quality assessment. In a video transmission system, video quality assessment can be accurately performed in real time with reduced computational load upon the client. In particular, the server performs first picture quality assessment and sends the assessment result to the client, and the client performs second picture quality assessment only when a transmission error occurs to reduce the computational load on the client. | 06-18-2009 |
20090160943 | Detecting legacy bridges in an audio video bridging network - In a network having one or more Audio Video Bridging (AVB) devices, non-AVB bridges are detected by transmitting a maintenance message, such as a unicast linktrace message, from one AVB device such as a residential gateway to another AVB device such as a set-top box or IPTV. AVB devices in the path provide replies indicating whether the port on which the linktrace message was received is connected to a non-AVB bridge. The disclosure has utility in diagnostics problems with IPTV in a network. | 06-25-2009 |
20090201373 | SIGNAL DETECTION METHOD AND APPARATUS, AND RADIATION IMAGE SIGNAL DETECTION METHOD AND SYSTEM - In a signal detection method in which a correlated double sampling is performed, a signal-to-noise ratio of a detected signal is improved and the speed of signal detection is increased. | 08-13-2009 |
20090219395 | Measurement and Display for Video Peak Jitter with Expected Probability - A system and method are provided to generate a histogram of jitter peak values within histogram hardware. The histogram is then transferred to a jitter analyzer, which is implemented in either dedicated hardware or software running on a general purpose processor. The jitter analyzer calculates a cumulative distribution function (CDF) array and a complementary cumulative distribution function (CCDF) array based upon the histogram, and determines the peak jitter values based upon a probability value. | 09-03-2009 |
20090231437 | TV DATA PROCESSING METHOD AND TV DATA RECEIVER UTILIZING WHICH - A TV data processing method includes receiving TV data, determining a program type to which the TV data belongs, detecting a signal quality of the TV data, and determining if the signal quality is larger than a threshold standard. When the signal quality is not larger than a threshold standard, the method includes processing the TV data according to the program type. Also, the method according to the present invention can assign different threshold standards to different program types respectively. | 09-17-2009 |
20090231438 | Automatic Testing of Scheduled Telepresence Meetings - Equipment and network resources are automatically tested in advance of scheduled telepresence meetings in order to discover problems before the actual telepresence meeting. When a meeting between telepresence sites is scheduled, a test time is automatically scheduled for performing a test in advance of a scheduled time of the telepresence meeting. At the test time, performing the test to determine whether equipment functions at telepresence sites involved in the telepresence meeting and network resource availability are sufficient to support the telepresence meeting. | 09-17-2009 |
20090244289 | AUDIO-VISUAL QUALITY ESTIMATION - A method and an apparatus for estimating a quality of an audio-video signal includes calculating audio and video quality factors from audio and video technical characteristics. An audio-video quality factors interaction is computed from an interaction between the audio and video quality factors. At least one of an audio quality, a video quality and an audio-visual quality is computed using the audio and video quality factors and the audio-video quality factors interaction. | 10-01-2009 |
20090262198 | Video Quality Estimation Apparatus, Method, and Program - In estimating subjective video quality corresponding to main parameters ( | 10-22-2009 |
20090273676 | METHOD AND APPARATUS FOR MEASURING BLOCKINESS IN VIDEO IMAGES - The present invention relates to an apparatus and method for processing images, in particular for determining the degree of blockiness in coded images. The invention comprises apparatus and methods for determining a degree of blockiness in a digital image comprising blocks each block comprising a plurality of rows and a plurality of columns of pixels each pixel having a value by performing the steps of: for each block determining an intra block measure in dependence upon the values of a set of pixels within said block; and determining said measure in dependence upon a plurality of said intra block measures corresponding to each block. Method and apparatus for generating a quality measure in dependence upon the measure of blockiness are also provided. | 11-05-2009 |
20090273677 | METHOD AND APPARATUS FOR IMAGE SIGNAL NORMALISATION - The present invention relates to an apparatus and method for normalisation of an image signal, particularly for use in perceptual video and still image quality measurement when the quality measurement is achieved by making a comparison between a reference signal and a decoded signal. The invention provides a method for normalising a decoded image signal in relation to a reference image signal to generate a normalised image signal comprising the steps of: generating a non-linear transformation vector in dependence upon at least one component of the decoded image signal and at least one component of the reference image signal; and applying said non-linear transformation vector to at least one component of the decoded image signal to generate a normalised image signal. Methods and apparatus for perceptual video and still image quality measurement using said method are also provided. | 11-05-2009 |
20090273678 | METHOD AND APPARATUS FOR GENERATION OF A VIDEO QUALITY PARAMETER - This invention provides a parameter for use in assessing video quality based on temporal frame freezing for use in an apparatus and method for perceptual video quality measurement. The invention provides a method of generating a freeze frame parameter relating to the perceptual impact of frozen frames in a video signal comprising the steps of: identifying frozen frames; identifying a freeze event comprising a plurality of consecutive frozen frames, the freeze event having a duration in dependence upon the number of frozen frames in said sequence; defining a set of duration ranges; and generating a freeze frame parameter in dependence upon the number of freeze events having a duration falling within each duration range. Methods and apparatus for perceptual video quality measurement using the method are also provided. | 11-05-2009 |
20090309977 | BENCHMARKING AND CALIBRATING VIDEO QUALITY ASSESSMENT TOOLS - Architecture for emulating a wide variety of possible degradations in a video signal and applying the degradations to video quality assessment (VQA) tools and quality of assessment (QoA) systems to test that performance consistently responds to all possible degradations. Methods are provided for producing deterministic impairments to the video signal, where the impairments mimic the effect of video compression or lossy delivery networks. The methods can be integrated into a software and/or hardware products built to exercise and quantify the performance of an active VQA systems and integrated to calibrate passive QoA systems. The methods can be used to produce a reference content database for further use in benchmarking QoA systems and a database that cross correlates with representative mean opinion scores (MOS) collected from subjective testing. | 12-17-2009 |
20090315999 | FREQUENCY COMPONENT MEASURING DEVICE - A frequency component measuring device formed in a simple structure and enabling a reduction in measurement time and an increase in measurement accuracy. The frequency component measuring device comprises mixers | 12-24-2009 |
20090316000 | Utilizing an Audio Signal to Monitor a Program with a Technique that is Operable even During a Mute Mode - An apparatus for monitoring a program signal received from a broadcast source that is to be performed by reproduction equipment, wherein an audio portion of the program signal is broadcast in combination with a monitoring code to provide a combined audio signal, comprising a switch, a code detector, and a component configured to receive the combined signal from the broadcast source and to provide to each of the reproduction equipment and the switch a respective output signal related to the combined signal. The code detector is adapted to receive an audio output from the reproduction equipment which has a mute mode, the reproduction equipment transmitting at least the monitoring code from the combined audio signal to the code detector if not in the mute mode and not transmitting the monitoring code to the code detector if in the mute mode. The switch is configured to transmit at least the monitoring code from the combined audio signal to the code detector if the reproduction equipment is in the mute mode and not transmit the monitoring code to the code detector if the reproduction equipment is not in the mute mode. | 12-24-2009 |
20090322886 | Pull-Down Signal Detecting Apparatus, Pull-Down Signal Detecting Method, and Interlace-Progressive Converter - According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not correspond to a first pull-down pattern. | 12-31-2009 |
20100007741 | VIDEO SIGNAL MONITORING APPARATUS AND METHOD - An apparatus for monitoring a video signal comprises means ( | 01-14-2010 |
20100026813 | Video monitoring involving embedding a video characteristic in audio of a video/audio signal - A first video characteristic value is determined from a video/audio signal. The first video characteristic value is embedded in an audio portion of the video/audio signal and the video/audio signal is transmitted from a transmission source to a transmission destination. At the destination, the first video characteristic value is recovered and the received video/audio signal is used to determine a second video characteristic value. The recovered first video characteristic value is used to verify or check the second video characteristic value. By comparing the first and second video characteristic values, a determination is made about degradation of the received video/audio signal. In one example, a determination is made as to whether a lip-sync error has likely occurred. In another example, the audio-transmitted first video characteristic is used for copyright protection purposes. | 02-04-2010 |
20100039517 | FILM CADENCE DETECTION - A film cadence in a video signal (VA) is detected in the following manner Successive classification indications (BC | 02-18-2010 |
20100053335 | SYSTEM AND METHOD FOR MEASURING IMAGE QUALITY OF MOVING PICTURES - The present invention relates to a system for measuring image quality of moving pictures. The system comprises a transmitter, for transmitting encoded image data through a channel, and a receiver, for receiving the encoded image data and analyzing image information from the received image data to measure the image quality of moving pictures. The receiver includes a reception data input unit for receiving the encoded image data, a reception information analysis unit for analyzing a bitstream from the received image data in order to extract image information including loss or non-loss, a motion vector, and coordinates of each block, and an image quality measurement unit for applying a weight to each block by using the extracted image information and calculating the number of lost blocks reflecting weights to measure image quality. | 03-04-2010 |
20100053336 | METHOD AND SYSTEM FOR VIDEO QUALITY ASSESSMENT - A system and method for evaluating a video signal comprising a plurality of video frames. In the plurality video frames, the number of pixels changed from one frame to the next are analysed and each frame is identified as being a repeat if a set proportion of the pixels present in the current frame match those present in the previous frame. The resultant pattern of repeat frames in the video signal is recorded. The resultant pattern is then scanned to determine whether or not a given repeat frame is part of a temporally repetitive pattern and those repeat frames not determined to be part of the temporally repetitive pattern are identified. As result of the above, video quality assessment is able to treat these two types of temporal artefact separately so as to distinguish between the almost invisible regular frame loss and the visually disturbing irregular frame loss. | 03-04-2010 |
20100060741 | PASSIVE AND REMOTE MONITORING OF CONTENT DISPLAYED BY A CONTENT VIEWING DEVICE - A method and system provide for passive monitoring by a monitor entity of content displayed for viewing by a content viewing device. Generally, one or more content source parameters of a content viewing device are observed or monitored. From the one or more content source parameters are determined content displayed for viewing on the content viewing device. One or more content data representative of the displayed content is next extracted. A monitor entity passively monitors the one or more content data and optionally the one or more content source parameters of the content viewing device. The monitor entity may be a person, an external device programmed to do monitoring, or a person interfacing with an external device. | 03-11-2010 |
20100066837 | ADAPTIVE SCREEN COLOR CALIBRATION - Various embodiments for adaptive screen color calibration are presented. An embodiment of a method includes activating a calibration feature on a device, obtaining color data by scanning a pre-set color pattern displayed on a screen via a RGBW color sensor in the device, obtaining a current ambient light condition via an ambient light sensor in the device, obtaining a current temperature condition via a temperature sensor and measuring the color data with the current ambient light condition and current temperature condition, where the measured color data is used to automatically adjust one or more color settings of the screen to match a pre-set color standard. Other embodiments are described and claimed. | 03-18-2010 |
20100073485 | System and Method for Video Transmission Line Fault Detection - A video circuit including a video amplifier adapted to generate an amplified output video signal from an input video signal; a short detection circuit adapted to generate a first signal indicative of whether there is a short present at an output of the video amplifier; and a load detection circuit adapted to generate a second signal indicative of whether there is a load coupled to the output of the video amplifier. The video circuit may further include an input signal detection circuit adapted to generate a third signal indicative of whether an input video signal is present. The third signal generated by the input signal detection circuit may be used to enable the outputting of the first and second signals in order to prevent the false indication of faults at the output of the video amplifier in the absence of an input video signal. | 03-25-2010 |
20100079595 | TELEVISIONS WITH REDUCED POWER CONSUMPTION - Described herein are systems and methods that reduce power consumption for a television that includes an LCD display. Power conservation systems and methods described herein alter video information in one or more inactive portions of a display area such that the altered video information decreases power consumption. | 04-01-2010 |
20100110199 | Measuring Video Quality Using Partial Decoding - The quality of video that is broadcast as a packet-based video stream is measured using decoded pictures in combination with information extracted from the transport stream and elementary stream layers of the packet-based video stream. The decoded pictures include selected frames and/or slices decoded from the packet-based video stream and are used to generate video content metrics. A composite score for the video quality can be generated from the video content metrics in combination with quality metrics of the transport stream and/or the elementary stream. If the composite score falls below a minimum score, a snapshot of the video is captured for later analysis. | 05-06-2010 |
20100123783 | GAIN CALIBRATION DEVICE AND METHOD OF GAIN CALIBRATION - A gain calibration device includes an integrator, a first register, a controller, and a second register. When an optical image stabilizer is activated, the controller determines whether a current magnification of an image processing equipment is the same as a previous magnification. When the current magnification is not the same as the previous magnification, the controller reads the current magnification. Then the first registers stores a reference magnification, which is corresponding to a reference gain value of the optical image stabilizer. The second register temporarily stores a current gain value. Based on the reference magnification, the reference gain value and the current magnification, the controller calculates the current gain value corresponding to the current magnification for compensating the optical image stabilizer. | 05-20-2010 |
20100128130 | SYSTEMS AND METHODS TO MONITOR VIDEO QUALITY - Systems, methods and graphical user interfaces monitoring video quality are provided. A particular method includes transmitting a video stream to an end user device of an ITV network for viewing at the end user device. The method also includes selecting the video stream for monitoring by a monitoring application. The method also includes transmitting the video stream to the monitoring application. The method also includes monitoring the video stream. | 05-27-2010 |
20100134633 | METHOD AND APPARATUS FOR TRANSITIONING FROM A FIRST DISPLAY FORMAT TO A SECOND DISPLAY FORMAT - A letterbox detector includes a detection module configured to determine aspect ratio changes in an input signal. A transition module is configured to transition between a plurality of display modes associated with the aspect ratio changes. A first display mode to a second display mode transition is performed over a first period of time, and a second display mode to a first display mode is performed gradually over a second period of time, that is different from the first period of time. The letterbox detector may be included in digital and analog displays. | 06-03-2010 |
20100141774 | Apparatus for Determining Information in Order to Temporally Align Two Information Signals - An apparatus for determining information in order to temporally align first and second information signals, each including one or several information values for successive sampling times, the apparatus including a characteristic extractor for extracting a characteristic per sampling time or per subsequence of sampling times from the first information signal within a first search pattern to obtain a first characteristic curve, and for extracting the characteristic per sampling time or per subsequence of sampling times from the second information signal within a second search pattern to obtain a second characteristic curve and a determiner for determining the information for temporal alignment based on similarities between the first and second characteristic curves of the characteristic by means of a first search for a search pattern from one of the first and second characteristic curves of the characteristic within the other of the first and second characteristic curves of the characteristic. | 06-10-2010 |
20100149344 | METHOD AND APPARATUS FOR IMPLEMENTING MOVING IMAGE COLOR APPEARANCE MODEL FOR VIDEO QUALITY RATINGS PREDICTION - Embodiments of the invention include systems and methods for predicting video quality through human vision perceptual color response and associated perceptual differences of video relative to a reference. Embodiments include a model of the human vision system developed as an extension to CIECAM02 to predict the macro-behavioral response to light stimuli with the following varying parameters, in addition to the parameters relevant to CIECAM02: spatial frequency, temporal frequency, angular extent, temporal extent, and surround. | 06-17-2010 |
20100157066 | DETECTION OF THE PRESENCE OF TELEVISION SIGNALS EMBEDDED IN NOISE USING CYCLOSTATIONARY TOOLBOX - A method for detecting the presence of a television signal embedded in a received signal including the television signal and noise is disclosed. Either first-order or second order cyclostationary property of the signals may be used for their detection. When the first-order cyclostationary property is used, the following method is used, the method comprising the steps of upsampling the received signal by a factor of N, performing a synchronous averaging of a set of M segments of the upsampled received signal, performing an autocorrelation of the signal; and detecting the presence of peaks in the output of the autocorrelation function. When the second order cyclostationary property of the signal is used, the method comprising the steps of delaying the received signal by a fixed delay (symbol time), multiplying the received signal with the delayed version, looking for a tone (single frequency) in the output. | 06-24-2010 |
20100201824 | SYSTEMS AND METHODS FOR COMPARING MEDIA SIGNALS - Various systems and methods for comparing media signals are disclosed. In some embodiments, media signals are compared by identifying characteristic features in the respective signals and then analyzing the characteristic features to determine if the signals contain corresponding content. In other embodiments, the characteristic features are analyzed to determine the extent to which the signals are synchronized in time. | 08-12-2010 |
20100208079 | SYSTEMS AND METHODS FOR COMPARING MEDIA SIGNALS - Various systems and methods for comparing media signals are disclosed. In some embodiments, media signals are compared by identifying characteristic features in the respective signals and then analyzing the characteristic features to determine if the signals contain corresponding content. In other embodiments, the characteristic features are analyzed to determine the extent to which the signals are synchronized in time. | 08-19-2010 |
20100220195 | METHOD AND SYSTEM FOR UPDATING VIDEO DATA - A method, apparatus, and system for updating video data are disclosed herein. The first method disclosed herein includes: the MP receives an indication from the MC, detects the video quality of the video source, and requests the video data to be updated from the MC according to the detection result. The second method includes: the MP receives an indication sent by the MC and performs detection; and requests video data to be updated from the MC after detecting an in-band video data update request sent by a video source. The third method includes: the MP sends an in-band video data update request to the video source specified by the indication according to the indication sent by the MC, requesting to update the video data specified by the indication. Through the present invention, the MP requests the video data that needs to be updated from the MC. | 09-02-2010 |
20100225767 | METHODS AND SYSTEMS FOR DETECTING AND LOCATING SKIPPED FRAMES IN A VIDEO SEQUENCE - Aspects of the present invention are related to systems and methods for detecting and locating skipped frames in a video sequence. | 09-09-2010 |
20100225768 | METHOD AND SYSTEM FOR PROVIDING RELIABLE MOTION VECTORS - The present invention relates to a method for providing reliable motion vectors, comprising the steps of determining motion vectors between two image frames with backward and forward estimation, comparing backward estimation motion vectors and forward estimation motion vectors, and detecting unreliable motion vectors based on the comparison result. | 09-09-2010 |
20100231724 | TRANSLATION MODULE TO FACILITATE CONTROL OF TV USING HOME NETWORK CONTROLLER - A module interconnects a home network controller and a TV and translates signals from the controller into a non-infrared (IR) protocol understandable by the TV. The module is also useful to send software updates to the TV, and/or to query the TV for diagnostic information. | 09-16-2010 |
20100259621 | Image Processing Apparatus, Image Processing Method and Storage Medium - An image processing apparatus includes a discontinuity detecting unit configured to detect a discontinuity between frames in stream data and, when detecting a discontinuity, add predetermined discontinuity information and output the image data and header information, a FIFO configured to store the image data and the header information in association with each frame, and a frame-to-be-processed determining unit configured to determine, for continuous frames, elapsed time from the start of the stream on the basis of the PTSs of two continuous frames, determine, for a discontinuous frame, elapsed time based on the PTS and frame rate of a frame preceding or succeeding the point at which a discontinuity exists, and determine a frame to which image processing is to be applied based on the determined elapsed time and time intervals f set for specifying a frame to which the image processing is to be applied. | 10-14-2010 |
20100265334 | AUTOMATIC ADJUSTMENTS FOR VIDEO POST-PROCESSOR BASED ON ESTIMATED QUALITY OF INTERNET VIDEO CONTENT - A system including a quality estimation module configured to estimate a visual quality of video content based on data from a decoder module. The system further including a settings database configured to store a plurality of predetermined settings. The settings database outputs at least one of the predetermined settings in response to the visual quality. The system further including a video post-processor module configured to automatically adjust settings of the video post-processor module based on the at least one of the predetermined settings. The video content is processed based on the settings of the video post-processor module that were automatically adjusted. | 10-21-2010 |
20100271486 | METHOD AND APPARATUS FOR PROVIDING ROBUST DISPLAY DIGITAL CHANNEL TRANSMISSION - A method and apparatus for maintaining communication between an HDMI sources and an HDMI sink by monitoring data received from the HDMI source, and, based on the monitoring, dynamically switching between a first and a second mode without user intervention. The device may include a head end connector, a tail end connector and a cable. The head end connector may include a controller, a memory and an electrical signal transceiver. The controller may monitor data output from the source, and based on the outputted data; the controller may determine whether to maintain a first communication method or a second communication method. | 10-28-2010 |
20100271487 | COMBING ARTIFACTS DETECTION APPARATUS AND COMBING ARTIFACTS DETECTION METHOD - A combing artifacts detection apparatus includes a feature-value calculating unit that calculates a feature value from an input image; a film-mode detecting unit that detects a film mode by using the feature value; and a pixel-difference calculating unit that calculates a pixel difference between fields by using 2:3 pulldown sequence detection information and input-image combination information that are results of the film mode detection. The apparatus also includes a luminance-variation determining unit that determines luminance variation based on a calculation result of the pixel-difference calculating unit; a combing artifacts-candidate detecting unit that detects a combing artifacts candidate per line based on a determination result of the luminance-variation determining unit; and a combing artifacts determining unit that determines whether a combing artifacts occurs for each image based on a detection result of the combing artifacts-candidate detecting unit. | 10-28-2010 |
20100271488 | Method for detecting corrupted payload in a serial digital interface video stream - The preferred method involves the use of an embedded data field within the video stream to transport a predetermined/known source string of data which in normal operation is carried intact through the entire head-end, grooming, distribution and access portions of the provider's network. An element or multiple elements are positioned at one or more points in the network. The elements continually monitor the stream to verify that a predetermined data string is located in the embedded data field. | 10-28-2010 |
20100289902 | TESTING SYSTEM AND METHOD FOR VIDEO CHIP - A testing system for a video chip to be tested stores a video file in advance. At first, the testing system using a sample video chip to play the video file and outputs first video data. Then a video chip to be tested is installed into the testing system to play the video file and outputs second video data. The first video data and the second video data are compared to determine whether the video chip to be tested is acceptable or not and a control signal is outputted according to the comparison to control a robotic arm to place the video chip to be tested at a determined place. | 11-18-2010 |
20100309317 | DEVICE AND METHOD FOR DETECTING UNUSED TV SPECTRUM FOR WIRELESS COMMUNICATION SYSTEMS - TV white space spectrum sensors and methods for detecting and managing the white space are provided. The sensor is provided with a spectrum detector/analyzer, which senses and analizes the wireless signals present in a spectrum of interest, identifies white space, and assigns the white space to secondary services. For reducing the white space detection time, the sensor uses a group detection method whereby multiple channels are sensed simultaneously. For reducing the sensor cost, the dynamic range of the sensor is reduced by operating the sensor in saturation for signals with the energy higher than a threshold. The sensor is also provided with a spectrum manager/planner capable of understanding a plurality of air interface standards, reserving and providing the right amount of white space spectrum to each application, based on the respective standard requirements. The particular architectures used by the sensor result in an affordable addition to any wireless device. | 12-09-2010 |
20100328468 | Adaptive Video Processing Circuitry and Techniques - Video processing circuitry to adaptively process input video data which corresponds to a plurality of video frames of a selected channel which is one of a plurality of channels of a broadcast spectrum. In one aspect, the video processing circuitry includes spatial adaption circuitry to generate and output spatially adapted video data corresponding to the plurality of video frames, temporal adaption circuitry to generate and output temporally adapted video data corresponding to the plurality of video frames, and video manipulation circuitry, coupled to the spatial adaption circuitry and the temporal adaption circuitry, to generate output video data corresponding to the plurality of video frames, using the input video data, the spatially adapted video data and the temporally adapted video data. Methods of adaptively processing input video data which corresponds to a plurality of video frames of a selected channel which is one of a plurality of channels of a broadcast spectrum are also disclosed. | 12-30-2010 |
20110037857 | METHOD, SYSTEM AND TEST PLATFORM FOR TESTING OUTPUT OF ELECTRICAL DEVICE - A method for testing output of an electrical device includes the following steps: a device being tested transmits a first signal to a test platform through a channel being tested. A signal received through the channel being tested by the test platform is compared with the first signal to determine if the received signal corresponds to the first signal. The channel being tested is determined to be normal if the received signal corresponds to the first signal. The channel being tested is determined to be abnormal if the received signal does not correspond to the first signal. | 02-17-2011 |
20110063452 | Device for Verifying the Integrity of an Item of Displayed Data and Associated Method - A device for verifying the integrity of an item of data displayed on a display device controlled by a video controller, the video controller being connected to the display device by an appropriate connection and transmitting to it a video signal including an input interface which allows the device to be connected at a branch of the connection between the video controller and the display device, a reconstruction device which is capable, from the derived video signal, of reconstructing an image corresponding to the image displayed on the display device; an analysis device which is capable of extracting an item of reconstructed data from the reconstructed image, a comparison device which is capable of comparing the reconstructed data with a reference value of the item of data to be displayed and an alarm means which is capable of activating a malfunction alarm in accordance with the result at the output of the comparison device. | 03-17-2011 |
20110063453 | SHOT TRANSITION DETECTION METHOD AND APPARATUS - The present invention discloses a shot transition detection method and a shot transition detection apparatus. The shot transition detection method includes an inter-frame feature differential sequence generation step of generating a plurality of inter-frame feature differential sequences with different differential scales based on a video, wherein lengths of at least two inter-frame feature differential sequences of the plurality of inter-frame feature differential sequences are greater than or equal to 2; and a shot transition detection step of detecting a shot transition in the video by an association of the plurality of inter-frame feature differential sequences. The present invention is capable of detecting a shot transition in a video effectively. | 03-17-2011 |
20110063454 | Apparatus and method used to evaluate and optimize image quality in high color gamut imaging systems - A test apparatus comprising a combination of front illuminated and rear illuminated optical reference test elements designed to produce predetermined electronic signals. The front illuminated elements comprise spectrophotometrically neutral gray patches and primary and secondary color patches of predetermined hues. Additional color patches having the same hue as the primaries and secondaries, but at lower saturation levels, generate unique logical patterns on display devices well known to the broadcasting and image reproducing industries. The rear illuminated test elements comprise wide color gamut hues at levels of saturation not attainable in reflected light systems. Also disclosed is a method of evaluating and optimizing the image quality in high gamut imaging systems, using the above described apparatus. | 03-17-2011 |
20110063455 | Monitoring Quality Of Video Signals - In a method and system for assessing video quality, an analog video signal to be assessed is input. At least part of the incoming video signal is converted to digital values. The digital values are stored. A detector determines whether any stored digital value is outside an acceptable range. | 03-17-2011 |
20110069177 | Policy-based Video Quality Assessment - A method to determine when to compare original data (such as the original image) to rendered data (such as the rendered image) for the purpose of determining the fidelity of without some of the disadvantages of the prior art is disclosed. This is done by assessing the quality of service of a network path at a given time or by assessing the conditions of the network path over time and deciding specific times at which to test. | 03-24-2011 |
20110080484 | DISTORTION MEASURING METHOD - A method for measuring distortion is provided. In one embodiment, the method for measuring distortion of a current block, used to estimate motion by estimating high-frequency and low-frequency components of the current block, comprises: calculating the sum of distortion values of the high-frequency component of the current block; calculating the sum of first distortion values of the low-frequency component of the current block; calculating a second distortion value of the low-frequency component of the current block; and adding the sum of the distortion values of the high-frequency component and the second distortion value of the low-frequency component of the current block. | 04-07-2011 |
20110090346 | REMOTE VIDEO DEVICE MONITORING - Remote video devices are monitored by receiving video pattern data from the remote video devices and comparing device video patterns represented by the video pattern data to predetermined video patterns. If device video patterns match the predetermined video patterns, a rule corresponding to the predetermined video pattern is accessed and execution of a recovery action is initiated. | 04-21-2011 |
20110102600 | ADVERTISING METRICS SYSTEM AND METHOD - The present disclosure relates to a system and method for monitoring audio-video (AV) streams transported over a network. The system may include at least one AV probe configured for installation at a network node. The at least one AV probe may be configured to receive an incoming AV stream at a native frame rate and to capture at least one thumbnail of the incoming AV stream at a sampling rate which is less than the native frame rate to form a thumbnail stream. The at least one AV probe may be further configured to timestamp and transmit the thumbnail stream, and to forward the incoming AV stream substantially in real-time. The system may further include at least one monitoring engine operatively connected with the at least one AV probe, the at least one monitoring engine configured to receive the thumbnail stream, capture AV data from the thumbnail stream, and transform the AV data into a visual representation of AV stream quality of experience (QoE). | 05-05-2011 |
20110102601 | VIDEO QUALITY MEASUREMENT - This invention is concerned with a video quality measurement method, in particular where the video signal having: an original form; an encoded form in which video signal has been encoded using a compression algorithm utilising a variable quantiser step size such that the encoded signal includes a quantiser step size parameter; and, a decoded form in which the encoded video signal has been at least in part reconverted to the original form. The method comprises the steps of: a) generating a first quality measure which is a function of said quantiser step size parameter; b) generating a masking measure and c) combining the first and second measures. The masking measure is which is a function of the spatial complexity of parts of the frames represented by the video signal in the decoded form, these parts being selected by generating a second measure which is a function of the prediction residual and identifying one or more regions of the picture for which the second measure exceeds a threshold. | 05-05-2011 |
20110109750 | METHOD AND APPARATUS FOR HIGH DYNAMIC RANGE IMAGE MEASUREMENT - The present invention provides a method and system for high dynamic range image measurement which is configured to control the light intensity distribution through an optical modulating switch for adjusting the intensity of the light passing therethrough so as to control the light intensity distribution of the light projecting on an object or of the object light being sensed by a photo detector for preventing the optical sensing signals of the photo detector from over-saturating. After that, the optical sensing signals are compensated according to the optical intensity distribution modulated by the optical modulating switch so as to obtain an image data with high dynamic range. | 05-12-2011 |
20110122255 | METHOD AND APPARATUS FOR DETECTING NEAR DUPLICATE VIDEOS USING PERCEPTUAL VIDEO SIGNATURES - Methods and apparatus for detection and identification of duplicate or near-duplicate videos using a perceptual video signature are disclosed. The disclosed apparatus and methods (i) extract perceptual video features, (ii) identify unique and distinguishing perceptual features to generate a perceptual video signature, (iii) compute a perceptual video similarity measure based on the video edit distance, and (iv) search and detect duplicate and near-duplicate videos. A complete framework to detect unauthorized copying of videos on the Internet using the disclosed perceptual video signature is disclosed. | 05-26-2011 |
20110141289 | METHOD AND SYSTEM FOR ASSESSING QUALITY OF MULTI-LEVEL VIDEO - Provided is a method of assessing an image quality of each of a base layer and an enhanced layer using a different scheme to assess a quality of a multi-level video based on assessment results. A multi-level video quality assessing system includes: a bitstream extractor to separate a multi-level video into a base layer bitstream and an enhanced layer bitstream; a base layer quality assessment module to generate quality assessment result information of a base layer image by assessing an image quality of base layer bitstream; an enhanced layer quality assessment module to generate quality assessment result information of an enhanced layer image by assessing an image quality of enhanced layer bitstream; and a final video quality assessment module to assess a quality of experience (QoE) of multi-level video based on quality assessment result information of each of the base layer image and the enhanced layer image. | 06-16-2011 |
20110149082 | DATA PACKET FREQUENCY - A method of determining a representative frequency for data packets, each data packet having an associated time, the method comprising: receiving a sequence of time-differentials, wherein a time-differential represents a difference between the time associated with a corresponding first data packet and the time associated with a corresponding second data packet; and determining the representative frequency based on the steps of: grouping a predetermined number N of the time-differentials into one or more groups based on the magnitudes of the N time-differentials; selecting one or more of the one or more groups for use in determining a representative time-differential; determining the representative time-differential as a function of the time-differentials of the selected one or more groups; outputting an inverse of the representative time-differential as the representative frequency. | 06-23-2011 |
20110149083 | Online System and Method For Quality Assurance Testing of High Definition Video Discs and Similar Media - An online quality assurance system and method for optical disc formats with enhanced interactivity features is disclosed. Specifically, the system and method provides a means for various studios, dvd player manufacturers, dvd standards specification providers, authoring facilities, and dvd standards tool developers to each provide and receive input, preferably in realtime, about research, development, and production issues, problems and solutions. | 06-23-2011 |
20110157371 | METHOD OF IDENTIFYING INCONSISTENT FIELD DOMINANCE METADATA IN A SEQUENCE OF VIDEO FRAMES - Embodiments of the present invention provide a method of identifying inconsistent field order flags for a sequence of video frames comprising: for each frame in the sequence of video frames analyzing the frame to make an initial determination of the field order for that frame; averaging the initial determination of the field order over a predefined number of most recently analyzed frames; and determining those frames for which the averaged field order does not match the field order identified by a respective field order metadata item associated with each frame by comparing the averaged field order for each frame to the respective field order metadata item. | 06-30-2011 |
20110157372 | MULTIMEDIA APPARATUS HAVING FUNCTION OF DETECTING VIDEO SIGNAL CONNECTION - A multimedia apparatus has a function of detecting video signal connection. The multimedia apparatus includes plural video output terminals. The user may selectively connect one of the video output terminals with a TV set. The analog video signal outputted from the video output terminal is detected by a detector. In a case that the connection between the first video output terminal and the TV set is interrupted but the second video output terminal is connected with the TV set, the detector issues control signal. According to the control signal, a first digital-to-analog converter is disabled to stop outputting a first analog video signal through the first video output terminal, and a second digital-to-analog converter is enabled to output a second analog video signal through the second video output terminal. | 06-30-2011 |
20110164140 | SYSTEM AND METHOD FOR MONITORING VIDEO PACKETS FOR QUANTIFYING VIDEO QUALITY - A system and method for monitoring a sequence of video packets for quantifying video quality includes a video picture monitor that accesses data in a header of a video packet included in the sequence of video packets. The header is separate from video content stored in the video packet. The video picture monitor also determines from the accessed data, a relationship between a portion of a picture included in the video packet and at least a portion of a picture included in another video packet. Both video packets are included in the sequence of video packets. This relationship indicates whether to use the video content stored in the first video packet to quantify video quality. | 07-07-2011 |
20110169963 | VIDEO ALIGNMENT AND CALIBRATION FOR VIDEO QUALITY MEASUREMENT - Video alignment and calibration, which is needed for video quality measurement in full-reference mode, is performed continuously on the videos being measured to account for alignment parameters that may change over time. With this technique, the quality of video files and/or live video streams can be measured in full-reference mode in real-time. During video alignment, the temporal and spatial offsets, as well as any spatial, luminance or color transformations between the two videos are measured; during video calibration, the video frames are adjusted for these offsets and transformations so that the video quality can be measured correctly. | 07-14-2011 |
20110169964 | Quality index value calculation method, information processing apparatus, video delivery system, and non-transitory computer readable storage medium - A quality index value S′, such as a degree of block distortion or edge sharpness, of each frame constituting video data, an error region ratio Q as a ratio of an error region in which a packet error or the like occurs, and a pixel difference level N as a level of difference from color originally used in the video data are calculated, and a quality index value S is calculated based on the calculated quality index value S′, the error region ratio Q, and the video delivery system 2. Accordingly, it is possible to calculate the quality index value indicating quality of video data that is approximately the same as quality determined by a person. | 07-14-2011 |
20110193970 | Reducing Jitter in a Recovered Data Stream Clock of a Video DisplayPort Receiver - The system and method, applicable to video display port applications, reduces the jitter in a regenerated data stream clock by using a first-in first-out (FIFO) storage memory to average the variations thereto. The method comprises loading the data extracted from data packets, received over a high speed connection, into the FIFO and running the application using the data in the FIFO. An initial frequency value of the stream clock Fvid is generated from the link clock Flink. Two integer values received over the link, M and N, that establishes a relationship between Flink and Fvid, are used to initiate recovery of Fvid. Lower and upper limits are set for data in the FIFO and the value of Fvid is adjusted to keep the level of data stored in the FIFO within these limits. Accordingly, variations of Fvid are averaged over the limits of the FIFO, thereby reducing the jitter. | 08-11-2011 |
20110205369 | OBJECTIVE PICTURE QUALITY MEASUREMENT - To assess picture impairment due to the interpolation of output images from input images, for example in standards conversion, an output image detail measure is compared with an input image detail measure. One of the image detail measures is obtained by interpolation between image detail measures for at least two images. | 08-25-2011 |
20110211074 | FIELD SEQUENCE DETECTOR, METHOD AND VIDEO DEVICE - A field sequence detector determines the field sequence of a series of fields of video by assessing the vertical frequency content of hypothetical de-interlaced images. Hypothetical images are formed from a currently processed field and an adjacent (e.g. previous or next) field. If the vertical frequency content is relatively high (e.g. above ½ the Nyquist frequency for the image), the hypothetical image is assessed to be formed of improperly interlaced fields, belonging to different frames. If the frequency content is relatively low, the hypothetical image is assessed to be properly assembled from fields of the same frame. The field sequence in the series of fields may be detected from the assessed frequency content for several of said series of fields. Known field sequence, such as 3:2 pull-down, 2:2 pull down, and more generally m:n:l:k pull-down sequences. | 09-01-2011 |
20110211075 | DEVICE AND METHOD FOR MOTION ESTIMATION AND COMPENSATION - A device for motion estimation in video image data is provided. The device comprises a motion estimation unit ( | 09-01-2011 |
20110242330 | Apparatus, System and Method for Testing Broadcast Signals - An apparatus, system and method that includes an enclosure having a front side and a back side. An input connection is joined to the enclosure for receiving an input signal having a format generally conforming to a one of a plurality of broadcast standards. At least one signal processor is within the enclosure for processing the input signal and for at least outputting parameters of the input signal. At least one personal audio-visual device is joined to the front side. The personal audio-visual device includes a display screen configurable for displaying at least one of the parameters. | 10-06-2011 |
20110249126 | DIGITAL BROADCAST RECEPTION DEVICE, DIGITAL BROADCAST RECEPTION METHOD AND PROGRAM - Disclosed are a digital broadcast reception device, a digital broadcast reception method and a program that shorten the period during which display is not possible that occurs when channels are switched. The digital broadcast reception device ( | 10-13-2011 |
20110254961 | Voice Quality Probe for Communication Networks - Embodiments emulate agents in a contact center, or enterprise, that initiate communication sessions to each other over communication networks and measure data quality using one or more metrics. That data measured can include voice and video data. Examples of communication networks used to place the voice calls include Internet Protocol (IP) networks and hybrid networks including more traditional telephony components. The data collected by the emulated agents is sent to a monitoring server. The monitoring server and the emulated agent behavior can be configured and scheduled via a web interface. In addition, the web interface provides the user with detailed reports, performance summaries, and visualizations of data collected, further enabling the user to troubleshoot a contact center or enterprise over a variety of communication networks. | 10-20-2011 |
20110254962 | CONTROLLING APPARATUS AND CONTROLLING METHOD FOR SIGNAL OUTPUTING CIRCUIT AND VIDEO SYSTEM - The invention discloses a controlling apparatus for a signal outputting circuit in an electronic system. The controlling apparatus includes a detecting circuit, a switch, and a controlling circuit. The detecting circuit is used for detecting whether the electronic system has an abnormal condition. The switch is electrically connected between a signal receiving terminal and the signal outputting circuit. The controlling circuit is electrically connected between the detecting circuit and the switch. Once the detecting circuit detects that the electronic system has the abnormal condition, the controlling circuit sets the switch into a high-impedance state. | 10-20-2011 |
20110267474 | METHOD OF TAGGING SIGNALS USED FOR LEAKAGE DETECTION AND MEASUREMENT IN CABLE TELEVISION NETWORKS AND APPARATUS FOR DETECTION AND/OR MEASUREMENT OF LEAKAGE SOURCES TAGGED WITH THIS METHOD - A method of tagging signals for leakage detection and measurement in cable television networks which uses additional signals carrying the tagging information and transmitted in these networks. A narrowband tagging signal or signals are placed in the unused frequency spectrum parts of any used cable television channel, in particular in the guard bands (GB) of analog or digital channels, carrying, for example, television, radio or data services. | 11-03-2011 |
20110310251 | BROADCAST METHOD AND SYSTEM - A method and system for airing broadcast signals is disclosed. Preferably, the system includes a production truck interface panel receiving a broadcast signal. A transmission relay circuit relays the signal from the interface panel to a broadcast network, and preferably including a broadcast signal detection circuit, and a signal processing circuit. The detection circuit determines a signal type of the broadcast signal, and the signal processing circuit processes the determined signal type. The system preferably further includes an operations control station displaying the determined type of broadcast signal. The method for airing broadcast signals over the broadcast network preferably includes the steps of providing the broadcast signal to the transmission relay circuit, detecting the broadcast signal type with the broadcast signal sensing and discerning circuit; and reconfiguring the signal processing circuit when the configuration of the signal processing circuit does not support transmission of the determined broadcast signal type. | 12-22-2011 |
20110317019 | ENABLING WHITE SPACE NETWORKS INDEPENDENT OF LOW-THRESHOLD SENSING - Described is a technology by which a remote or local geo-location service provides white space information that one or more client devices and/or base stations may use to determine which white spaces are available for use, e.g., for wireless networking. Because of the information, low-threshold sensing is not needed by the client devices and/or base stations to know which white spaces are available. The service computes the available white spaces for a given location based upon television transmitter parameters, elevation data, and information received regarding any operational wireless microphones. | 12-29-2011 |
20120007991 | METHOD AND APPARATUS FOR PROVIDING AND DETERMINING INTEGRITY OF VIDEO - A method and apparatus for providing and determining integrity of video is provided herein. During operation, a trusted unit such as a computer housed within a securable trunk of a vehicle generates or receives data on stimuli applied to a camera and receives video purportedly taken by that camera, as means for the trusted unit or an independent entity to determine if time periods of the stimuli correspond to responses seen or heard within the video. | 01-12-2012 |
20120013746 | SIGNALING DATA FOR MULTIPLEXING VIDEO COMPONENTS - A server may provide information describing characteristics of audio and video components to a client, separately from encoded samples of the audio and video components themselves. The client may use the information to select components, and then to request the selected components, e.g., in accordance with a streaming network protocol. In one example, an apparatus for sending encapsulated video data includes a processor configured to determine characteristics for components of a plurality of representations of video content, wherein the characteristics comprise at least one of a frame rate, a profile indicator, a level indicator, and dependencies between the components, and one or more interfaces configured to send the characteristics to a client device, receive a request from the client device for at least one of the components after sending the characteristics, and send the requested components to the client device in response to the request. | 01-19-2012 |
20120019667 | METHOD AND DEVICE FOR ADAPTIVE NOISE MEASUREMENT OF A VIDEO SIGNAL - The present invention relates to method of adaptive noise measurement of a video signal comprising a sequence of images. The proposed method comprises the steps of searching one or more spatially uniform areas within a current image, determining a spatial uniformity value of said one or more spatially uniform areas and combining said spatial uniformity values to obtain a spatial noise value representing a first measure for the amount of noise in said current image, detecting motion by comparing the current image with one or more preceding images and/or one or more succeeding images of said sequence of images by use of a motion threshold to obtain one or more motion maps indicating the amount of motion between the current image and the respective preceding or succeeding image, searching one or more static areas within said one or more motion maps, determining a temporal uniformity value for said one or more static areas by comparing image values at positions in said one or more preceding images and/or said one or more succeeding images, at which a low amount or no motion is indicated in the respective one or more motion maps, said temporal uniformity value representing a measure for the amount of noise at said positions in said current image, and combining said obtained temporal uniformity values to obtain a combined noise value representing a second measure for the amount of noise in said current image. | 01-26-2012 |
20120098973 | AUTOMATIC FREQUENCY SELECTION FOR PEAKING - An automatic frequency selection circuit includes a base filter for receiving a video input, a peaking filter for receiving the video input, a first energy computation unit coupled to an output of the base filter, a second energy computation unit coupled to an output of the peaking filter, an automatic frequency control unit to compare relative measured energies of the first and second energy computation units and to output a temporarily stable selected frequency for a targeted attenuation, and a frame delay feedback unit for receiving the temporarily stable selected frequency coupled to the peaking filter. | 04-26-2012 |
20120098974 | OPTICAL METHOD FOR MEASURING HEIGHT OF FLUORESCENT PHOSPHOLIPID FEATURES FABRICATED VIA DIP-PEN NANOLITHOGRAPHY - Described is a calibration standard for determining the height of fluorescent microstructures, methods of using such a calibration standard, and a method of making such a calibration standard. | 04-26-2012 |
20120120250 | REDUCING TV LICENSING COSTS - A TV with various licensable components including, e.g., an ATSC demodulator requests a license for a component upon detection of a physical condition implicating use of the component, such as plugging a cable into a particular port, or upon receipt of a user-input command requiring use of the component, such as a request to autoscan channels. | 05-17-2012 |
20120120251 | Method and Apparatus for Obtaining Video Quality Parameter, and Electronic Device - Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment. | 05-17-2012 |
20120120252 | SYSTEM AND METHOD FOR THE DETECTION OF DE-INTERLACING OF SCALED VIDEO - A system, apparatus, and method are provided for a video detector that computes a measure of how much a given video content resembles one of a de-interlaced video content or a progressive video content. More particularly, the present invention determines the position of original and interpolated lines and the scaling factor of an input content whenever that content was scaled after de-interlacing. | 05-17-2012 |
20120120253 | Apparatus and method used to evaluate and optimize image quality in high color gamut imaging systems - A test apparatus comprising a combination of front illuminated and rear illuminated optical reference test elements designed to produce predetermined electronic signals. The front illuminated elements comprise spectrophotometrically neutral gray patches and primary and secondary color patches of predetermined hues. Additional color patches having the same hue as the primaries and secondaries, but at lower saturation levels, generate unique logical patterns on display devices well known to the broadcasting and image reproducing industries. The rear illuminated test elements comprise wide color gamut hues at levels of saturation not attainable in reflected light systems. Also disclosed is a method of evaluating and optimizing the image quality in high gamut imaging systems, using the above described apparatus. | 05-17-2012 |
20120127320 | Method And Apparatus For Displaying 3D Images - A method and an apparatus for displaying 3D images are disclosed. 2D images are projected from multiple points to a surface with narrow diffusion characteristics, thus it is possible to get a 3D light field with arbitrary angular dependence. According to the invention, the projectors ( | 05-24-2012 |
20120147195 | DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - Disclosed is a display device which facilitates to prevent an abnormal display during a driving mode conversion, an abnormal signal input, and a no-signal input, and a method for driving the same, wherein the display device comprises a video controller for detecting an abnormal signal input and no-signal input by monitoring video data and control signals inputted from the external; and generating video data and control signals according to the abnormal signal input and no-signal input so as to enable a normal end of a frame; a timing controller for arranging and outputting the video data, supplied from the video controller, for every frame unit; and generating and outputting control signals for controlling a gate driver and a data driver by the use of timing synchronous signals; and a display panel for displaying image by the use of input video data. | 06-14-2012 |
20120154601 | SYSTEM AND METHODS TO MEASURE NOISE AND TO GENERATE PICTURE QUALITY PREDICTION FROM SOURCE HAVING NO REFERENCE - Embodiments of the invention include a system and method to generate a quality rating prediction, such as MOS, of a video under test without using a second video as a reference. Instead of using a reference video, embodiments of the invention generate a pseudo reference video from measuring local impairments of the video under test. The local impairments are then accumulated to create a difference image. The difference image is then subtracted from the video under test to create the pseudo reference, to which the video under test is compared to generate the quality prediction rating. In some embodiments the local impairments may be measured by separating high frequency noise from the video under test from the video itself. Once separated, the noise is then measured and bandwidth compensated to generate the measured local impairments. | 06-21-2012 |
20120162439 | APPARATUS AND METHOD FOR EXOTIC CADENCE DETECTION - Aspects of the invention are directed towards an apparatus and method for detecting conventional and exotic cadences in video sequences. The cadence detector includes a motion auto-correlation unit using the inter-frame/field motion information to detect the cadence and a motion cross-correlation unit using the inter-frame/field motion information and the detected cadence to determine the cadence phase. The cadence detector also may include a reset signal generator to generate a reset signal to control the motion auto-correlation unit and the motion cross-correlation unit. The exotic cadence detector is robust and may support many cadences with reduced cadence detection latency as compared to the prior art. | 06-28-2012 |
20120169885 | Camera Lens Calibration System - The invention is discloses a camera lens calibration system and method thereof, which comprise a calibration platform, the calibration platform comprise a calibration structure. A calibration camera lens to be calibrated is placed on the calibration platform. An image testing module is provided for capturing a target pattern from a target pattern display through the calibration camera lens to be calibrated for getting an image pattern. The image testing module provides a contrast parameter computation for calculating the contrast parameter of image pattern and showing results on a display. | 07-05-2012 |
20120182430 | RADIO FREQUENCY FRONT END FOR TELEVISION BAND RECEIVER AND SPECTRUM SENSOR - A radio frequency front end for a television band receiver and spectrum sensor includes a low noise amplifier that amplifies a received signal output of a radio frequency antenna connected to the radio frequency front end, a pin diode attenuator circuit that selectively attenuates an output of the low noise amplifier, and a buffer amplifier that amplifies an output of the pin diode attenuator. | 07-19-2012 |
20120188380 | Machine Tool - Based, Optical Coordinate Measuring Machine Calibration Device - A calibration artifact for an inspection system is provided. The calibration artifact comprises a base adapted for placement within a holding fixture of an inspection system during calibration, a sphere operatively connected to the base, and a light source operatively connected to the base. The base, the sphere, and the light source are removable from the inspection system after calibration. | 07-26-2012 |
20120188381 | SYSTEM AND METHOD OF CALIBRATING A SYSTEM - The system measures time of at least one object on the basis of passing a finish line and includes a camera with a photosensitive sensor and a lens for registering an image of the line. The image is sent to a processor for processing. Timing means deliver a timing signal to the processor. The system is at least partially automatically aligned. It thereto comprises a first active optical indicator that is located at a predefined location with reference to the line of passage, which indicator is detected as part of the image registered by the camera so as to obtain detection data. The system further includes a camera adjustment arrangement for adjustment of the orientation of a center axis of the camera, said adjustment being specified by the processor on the basis of the detection data. | 07-26-2012 |
20120206609 | NANOMECHANICAL ELECTRIC AND ELECTROMAGNETIC FIELD SENSOR - The present invention provides a system for detecting and analyzing at least one of an electric field and an electromagnetic field. The system includes a micro/nanomechanical oscillator which oscillates in the presence of at least one of the electric field and the electromagnetic field. The micro/nanomechanical oscillator includes a dense array of cantilevers mounted to a substrate. A charge localized on a tip of each cantilever interacts with and oscillates in the presence of the electric and/or electromagnetic field. The system further includes a subsystem for recording the movement of the cantilever to extract information from the electric and/or electromagnetic field. The system further includes a means of adjusting a stiffness of the cantilever to heterodyne tune an operating frequency of the system over a frequency range. | 08-16-2012 |
20120212624 | METHOD, APPARATUS, AND SYSTEM FOR EVALUATING VIDEO QUALITY - Embodiments of the present invention provide a method, an apparatus, and a system for evaluating video quality. In the embodiments of the present invention, a method in the prior art that the video quality is determined only according to the number of lost packets and a packet loss rate is modified, and the location of the most important lost packet is determined by analyzing the influence of the lost packet on other packets, and a damage degree or degree of intactness of the video frame is determined according to the most important lost packets, so as to determine the quality of the video frame. The method greatly improves the precision for evaluating the video quality. | 08-23-2012 |
20120218419 | MEASURING HUM IN A DIGITAL TV SIGNAL - The invention relates to a method for measuring Hum on a digital QAM carrier using a testing device for testing digital TV signals including a QAM demodulator therein, and to a testing device implementing the method. A controller is used to sample a register associated with a final AGC stage in a QAM demodulator, and to process the collected register values to obtain one or more Hum characteristics. In one embodiment, a circular buffer is used to collect aligned sequences of AGC samples that have a pre-determined feature of time-domain Hum at a specified position therein. The aligned AGC sequences are then correlated to assess causes of Hum. | 08-30-2012 |
20120268609 | VIDEO OBJECT DETECTING APPARATUS, VIDEO OBJECT DEFORMING APPARATUS, AND METHODS THEREOF - A video object detecting apparatus enables a user to not only simply watch the video but also to explore a video using a motion and a posture of the user. In addition, the user may manipulate the video using body motion instead of general input units such as a mouse and a touch system. Also, a video object deforming apparatus enables the user to recognize a difference in motions between an interactive video and the user, and provides the user with a video reflecting the difference. | 10-25-2012 |
20120293666 | MULTI-DIRECTION SFR MEASUREMENT SYSTEM - A multi-directional SFR measurement system includes a rotatable test fixture located within an enclosure. Mounted on the test fixture is a test key for holding a camera module under test, a collimating lens, and a target/light source panel that provides a visible target for imaging by the camera module. A controller box located outside of the enclosure allows an operator to command the system to rotate the test fixture to a desired angle and capture an image of the target with the camera module under test. The system also includes an angle indicator to indicate the rotational angle of the test fixture and an air pressure controller/indicator to control and indicate the air pressure of the system used for positioning the collimating lens relative to the test fixture. | 11-22-2012 |
20120307074 | METHOD AND APPARATUS FOR REDUCED REFERENCE VIDEO QUALITY MEASUREMENT - Systems and methods of objective video quality measurement that employ a reduced-reference approach to video quality measurement. Such systems and methods of objective video quality measurement can extract information pertaining to one or more features of a target video whose perceptual quality is to be measured, extract information pertaining to one or more features of a reference video, and employ one or more prediction functions involving the target features and the reference features to provide a measurement of the perceptual quality of the target video. | 12-06-2012 |
20120307075 | STRUCTURED LIGHT PROJECTION FOR MOTION DETECTION IN AUGMENTED REALITY - Technologies are generally described for projecting structured light patterns onto an Augmented Reality (AR) scene in order to track AR camera motion in AR systems. In some examples, structured light patterns may be projected onto the AR scene from a light source in the same plane as the AR camera in order to preserve a consistent reference point for detecting the structured light pattern. The AR camera may detect the structured light patterns and determine the location of the AR camera based on a distance analysis of the detected structured light patterns. Based on the changing locations of the AR camera, the system may track the movement of the AR camera as its location relative to the AR scene changes. | 12-06-2012 |
20120307076 | SYSTEMS AND METHODS FOR TESTING VIDEO HARDWARE BY EVALUATING OUTPUT VIDEO FRAMES CONTAINING EMBEDDED REFERENCE CHARACTERISTICS - Methods and apparatus are described for assessing the video image decoding quality of a set top box (STB), television receiver or other video device. Moving video testing of video delivery hardware in a manufacturing environment uses a video sequence that has reference characteristics embedded in the visible portion of the video signal from frame to frame. Each frame of the video is analyzed for distortions of the embedded reference objects, and the reference objects are allowed to move from frame to frame. The reference objects are located through the use of a background that is easily discriminated from the objects and by the use of frame templates that locate the reference information in the frame. | 12-06-2012 |
20120314087 | Visual source management system - A visual source management system that allows simultaneous preview and control of multiple video sources and/or streams of content is provided. The processors feature easy, fast, and independent control over video and audio outputs with or without content protection. Display systems provide a number of useful configurations to allow multitasking as well as simultaneous high performance preview for easy intuitive selection of video sources for TV, television, computing, Internet, streaming, or applications. | 12-13-2012 |
20120327250 | HDMI SOURCE/SINK INTEROPERABLE CONFIGURATION DETERMINATION PROCESS - A method and system that configures an HDMI source device to use initial output parameters for communicating with an HDMI sink device, detects an abnormal operation performed by the HDMI sink device, selects a test of the HDMI sink device, applies the test, evaluates a result to determine whether the test produces a desired result, and modifies the initial output parameters to create revised output parameters. When the test produces the desired result, the revised output parameters will enable the HDMI sink device to produce the desired result. When the test fails to produce the desired result, the revised output parameters are conservative parameters that fail to produce the abnormal operation. The method reconfigures the HDMI source device to use the revised output parameters for communicating with the HDMI sink device, and saves the revised output parameters. | 12-27-2012 |
20130002886 | APPARATUS AND METHOD FOR INVERSE TELECINE WITH LOCAL VIDEO DE-INTERLACING - The present invention relates to systems and methods for inverse telecine or video de-interlacing for picture quality improvement on set-top-box and TV products. The system comprises a film mode detector at the picture or sequence level, a global mixed video and film content detector at the region, picture, or sequence level on top of the detected film content, and a local video content detector at pixel level on top of the detected mixed video and film content. Inverse telecine processing is applied on detected film content fading in with a locally de-interlaced local video content. The invention further provides an apparatus and method for globally detecting mixed video and film content at region, picture, or sequence level. Such apparatus and method comprise a plurality of detectors for robustness and increased detection accuracy. | 01-03-2013 |
20130016221 | MAPPING METHOD IN A GEOGRAPHICAL TRACKING AREA FOR TELEVISION WHITE SPACE BANDSAANM Charbit; GillesAACI FarnboroughAACO GBAAGP Charbit; Gilles Farnborough GBAANM Turtinen; SamuliAACI IiAACO FIAAGP Turtinen; Samuli Ii FIAANM Hakola; Sami-JukkaAACI KempeleAACO FIAAGP Hakola; Sami-Jukka Kempele FIAANM Koskela; TimoAACI OuluAACO FIAAGP Koskela; Timo Oulu FI - The present invention discloses an apparatus, a method and a computer program for mapping and allocating available television white space channels for a terminal requesting resources. The mapping is based on the data of available overlapping TV white space channels within a geographical tracking area and coexistence with other cellular secondary systems within the area. Furthermore, a location for a moving mode II device may be tracked periodically. The geo-location accuracy of the mode II device affects the TV white space resources which can be allocated to the device. | 01-17-2013 |
20130027563 | METHOD OF REAL-TIME CHECKING OF A MATRIX IMAGING DEVICE, AND ASSOCIATED DEVICE - A method is for monitoring the electrical integrity of lines of photosites of an imaging device with matrix array of photosites. The control lines of photosites may include for each line of photosites an emission of elementary electrical control signals for the photosites of the line. The method may include diagnosis of the elementary electrical control signals emitted. | 01-31-2013 |
20130038739 | SIGNAL EVALUATION SYSTEM AND METHOD - A digital television receiver includes smart antenna signaling that sends, to a smart antenna configuration, data specifying reception directions available to the smart antenna. The receiver includes an event monitor that detects a predetermined event, and a smart antenna configuration estimator that, in response to the detected event and for each of a current reception direction and available reception directions adjacent on either side of the current reception direction, to obtain an estimate and the maximum value of a channel impulse response from the receiver, to calculate an average value of the channel impulse response, including channel impulse response values for additional signal paths. The estimator calculates a respective quality value as the ratio of the maximum value to the average value of the channel impulse response. The receiver also includes a selector that selects a direction corresponding to the largest respective quality value as a new reception direction. | 02-14-2013 |
20130057703 | Methods, Systems and Apparatus for Automatic Video Quality Assessment - Aspects of the present invention are related to systems, methods and apparatus for automatic quality assessment of a video sequence. According to a first aspect of the present invention, a quality index may be generated by combining a spatial quality index and a temporal quality index. According to a second aspect of the present invention, a spatial quality index may be calculated using a modified exponential moving average model to pool multi-scale structural similarity indices computed from test frame—reference frame pairs. According to a third aspect of the present invention, a temporal quality index may be generated by averaging multi-scale structural similarity indices computed from difference image pairs, wherein one difference image is formed between reference frames and another difference image is formed between a reference frame and a test frame. | 03-07-2013 |
20130057704 | System and Method for Troubleshooting a Set Top Box - A method and system for troubleshooting a set top box is disclosed and can include receiving a trouble ticket from a set top box and initiating a self-test at the set top box. The method and system can include receiving test results from the set top box and analyzing the test results to isolate a problem. | 03-07-2013 |
20130070106 | METHOD FOR DETERMINING A QUALITY MEASURE FOR A VIDEO IMAGE AND APPARATUS FOR DETERMINING A QUALITY MEASURE FOR A VIDEO IMAGE - Accurately estimating the image quality of video is still difficult, especially when there is no reference video available. A method for determining a quality measure for a video image comprises selecting a measuring point, such as a MB, determining a context area around the measuring point, calculating a variance of pixel values in the context area, calculating a variance of pixel values in the measuring point, calculating a relation between the two variances of pixel values, and averaging said relations for a plurality of measuring points, wherein a quality measure for a video image is obtained. | 03-21-2013 |
20130083203 | System and Method for Diagnostic Modeling of Audio and Video Quality of Service - Systems and methods are described for determining a set of three quality metrics for audio and/or video signals transmitted through a packet network. The set of three metrics provide more insight into which factors are affecting the quality of the received signal as perceived by the end-user. These three quality metrics measure reductions in quality due to lossy media transmission, packet loss concealment from packet loss and/or packet/frame jitter, and long periods of silence and/or frozen video. Because each metric quantifies a different aspect of transmitted quality, a deficiency in the transmitted signal can be identified by reference to the set. | 04-04-2013 |
20130107058 | System and Method for Handling Audiovisual Equipment Issues | 05-02-2013 |
20130120587 | METHOD AND APPARATUS FOR MEASURING VIDEO QUALITY - The present invention provides a method and corresponding apparatus for measuring the quality of a video sequence. The video sequence is comprised of a plurality of frames, among which one or more consecutive frames are lost. During the displaying of the video sequence, said one or more lost frames are substituted by an immediate preceding frame in the video sequence during a period from the displaying of said immediate preceding frame to that of an immediate subsequent frame of said one or more lost frames. The method comprises: measuring the quality of the video sequence as a function of a first parameter relating to the stability of said immediate preceding frame during said period, a second parameter relating to the continuity between said immediate preceding frame and said immediate subsequent frame, and a third parameter relating to the coherent motions of the video sequence. | 05-16-2013 |
20130128055 | MODELING HUMAN PERCEPTION OF MEDIA CONTENT - A system includes a content evaluation device is configured to receive reproduced media content and compare the reproduced media content to reference media content to determine a quality of the reproduced media content relative to the reference media content. The content evaluation device is configured to apply an entropy factor to the determined quality to model human perception of the reproduced media content. A method of determining the entropy factor includes converting the reference media content or the reproduced media content to a grayscale image, counting a number of unique luminance values in the grayscale image, determining the total number of possible luminance values, and defining the entropy factor to be the number of total pixels compared relative to the maximum number of pixels represented by any single luminance value multiplied by the number of possible luminance values. | 05-23-2013 |
20130135481 | PHASOR-BASED PULSE DETECTION - A phasor-based pulse detection system includes a first multiplier stage configured to apply a first delayed conjugate multiplication operation to an input signal. The system can also include a second multiplier stage coupled to the first multiplier stage and configured to apply a second delayed conjugate multiplication operation to an output of the first multiplier stage, and an absolute value unit coupled to the second multiplier stage and configured to perform an absolute value operation on an output of the second multiplier stage. The system can further include video filter stage coupled to the absolute value unit and configured to perform a video filtering operation on an output of the absolute value unit. The system can also include a hysteresis detector coupled to the video filter stage, the hysteresis detector configured for detecting a signal in a filtered video signal received from the video filter stage. | 05-30-2013 |
20130141592 | System and Method for Video Quality Parametric Tests - A method and system for automatically evaluating the quality of a signal transmitted by an imaging device. The amount of noise in the video signal is analyzed using an algorithm that does not require comparison to a template signal. The results of the algorithm determine whether the signal meets a pre-determined threshold value for signal quality. | 06-06-2013 |
20130169822 | CAMERA CALIBRATION USING FEATURE IDENTIFICATION - Disclosed are methods, systems, computer readable media and other implementations, including a method to calibrate a camera that includes capturing by the camera a frame of a scene, identifying features appearing in the captured frame, the features associated with pre-determined values representative of physical attributes of one or more objects, and determining parameters of the camera based on the identified features appearing in the captured frame and the pre-determined values associated with the identified features. | 07-04-2013 |
20130176440 | SYSTEM AND METHOD FOR RECONFIGURATION OF AN ENTERTAINMENT SYSTEM CONTROLLING DEVICE - An entertainment device is used to notify a user of a change in an audio visual entertainment system configuration in which at least one of a plurality devices is connected to the entertainment device as an audio and/or visual source and at least one of the plurality of devices is connected to the entertainment device as an audio and/or visual output destination for the entertainment device and/or to notify a user of a perceived problem in a configuration of a controlling device used to control functional operations of the audio visual entertainment system. | 07-11-2013 |
20130182125 | CAMERA MODULE, AUTO FOCUS METHOD AND AUTO FOCUS CALIBRATION METHOD - An exemplary embodiment of the present disclosure includes a touch detection unit detecting if a particular region of the image of the object displayed by the display unit is touched, a memory unit stored with an auto focus calibration code of the particular region detected by the touch detection unit, and an auto focus driving unit receiving a coordinate of the particular region detected by the touch detection unit, reading out from the memory unit an auto focus calibration code corresponding to the particular region of the image of the object displayed on the display unit, and driving an auto focus actuator. | 07-18-2013 |
20130215279 | System and Method for Creating and Displaying Points of Interest in Video Test Results - A method for creating and displaying points of interest in video test results comprises obtaining a plurality of video test results, each of the plurality of video test results corresponding to a tester, and for each of the plurality of video test results, displaying the video test results, receiving at least one indicator of a point of interest in the video test results, receiving a text comment associated with the point of interest, and saving a timestamp that indicates a position in the video test results of the point of interest and a text comment in a memory. Then a graphical user interface is created that displays the timestamp and text comment of each point of interest in the plurality of test video results, where selection of a point of interest causes the corresponding video test result to be displayed beginning at the timestamp of the selected point of interest. | 08-22-2013 |
20130242114 | CAPTIONING EVALUATION SYSTEM - A captioning evaluation system. The system accepts captioning data and determines a number of errors in the captioning data, as well as the number of words per minute across the entirety of an event corresponding to the captioning data and time intervals of the event. The errors may be used to determine the accuracy of the captioning and the words per minute, both for the entire event and the time intervals, used to determine a cadence and/or rhythm for the captioning. The accuracy and cadence may be used to score the captioning data and captioner. | 09-19-2013 |
20130242115 | IMAGING BASED REFRACTOMETER FOR HYPERSPECTRAL REFRACTIVE INDEX DETECTION - Refractometers for simultaneously measuring refractive index of a sample over a range of wavelengths of light include dispersive and focusing optical systems. An optical beam including the range of wavelengths is spectrally spread along a first axis and focused along a second axis so as to be incident to an interface between the sample and a prism at a range of angles of incidence including a critical angle for at least one wavelength. An imaging detector is situated to receive the spectrally spread and focused light from the interface and form an image corresponding to angle of incidence as a function of wavelength. One or more critical angles are identified and corresponding refractive indices are determined. | 09-19-2013 |
20130242116 | IMAGE PROCESSING APPARATUS, ELECTRONIC DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM - There is provided an image processing apparatus including an evaluation information generation section which generates, based on a moving image and a frame rate of the moving image, evaluation information for specifying an image quality of the moving image in displaying the moving image at the frame rate, and a determination section which determines a parameter for adjusting the image quality of the moving image based on the generated evaluation information. | 09-19-2013 |
20130250128 | DETECTOR FOR DETECTING MULTIPLE HDMI SIGNALS - A detector for detecting multiple HDMI signals includes an HDMI source port, an HDMI objective port and a status detecting unit. The HDMI source port includes a CEC pin, an HTPLG pin and a DDC pin. The HDMI objective port includes a CEC pin, an HTPLG pin and a DDC pin set. The status detecting unit includes an input port, an output port and a status crosscheck module. The input port includes a CEC pin, an HTPLG pin and a DDC pin set respectively connected to those of the HDMI source port. The output port includes a CEC pin, an HTPLG pin and a DDC pin set respectively connected to those of the HDMI objective port. The status crosscheck module detects whether the HTPLG pin and the CEC pin of the input port receive signals or not. | 09-26-2013 |
20130265441 | METHOD AND SYSTEM FOR REGION-BASED MONITORING OF VIDEO ASSETS - A method and system for monitoring video assets provided by a multimedia content distribution network (MCDN) includes an expert test monitoring platform (ETMP) configured to emulate MCDN client systems at a facility of an MCDN service provider. The ETMP may be used to test monitor MCDN performance by acquiring a baseband video signal and performing a test operation including at least one check point condition. The check point condition may be associated with a masked region of the video signal and may also involve a test of an audio channel. A plurality of test operations and/or check point conditions may be defined and executed on the baseband video signal, while the results of the test operation may be logged. | 10-10-2013 |
20130293725 | No-Reference Video/Image Quality Measurement with Compressed Domain Features - Techniques for objectively determining perceived video/image quality, the techniques including receiving a degraded bit-stream comprising encoded video/image data, and subsequently parsing the bit-stream to extract one or more video/image coding components. The video coding components may include intra-prediction modes, discrete cosine transform (DCT) coefficients, motion information, or combinations thereof, and may be used as a basis for objectively predicting a Quality of Experience (QoE) or Motion Opinion Score (MOS) score of the degraded bit-stream. | 11-07-2013 |
20130314551 | TESTING METHOD AND TESTING APPARATUS FOR TELEVISION SYSTEM - A testing apparatus, coupled to a mobile storage device, includes a control module and an intermediate module. The intermediate module, coupled to a television system and the mobile storage device, is for switching a subordinate status of the mobile storage device. The control module controls the intermediate module to write target data into the mobile storage device, and to allow the mobile storage device to output the target data to the television system. | 11-28-2013 |
20130335578 | Ambient Adaptive Objective Image Metric - A system and method are provided for measuring image quality using an ambient adaptive objective brightness metric. The method accepts an electronically formatted original image (I), and also accepts an electronically formatted brightened image (B), obtained by modifying the original image. For example, the brightened image (B) may be an illumination-modified original image. The method also accepts a relative ambient illumination value (λ). A dynamic reference AI=Iλ is generated, and the brightened image (B) is compared to the dynamic reference (AI). | 12-19-2013 |
20140002670 | IMAGE AND VIDEO QUALITY ASSESSMENT | 01-02-2014 |
20140002671 | SYSTEM AND METHOD FOR MANAGING DIGITAL/ANALOG CONVERTOR OF A VIDEO CARD | 01-02-2014 |
20140002672 | TESTING APPARATUS AND METHOD USING SAME | 01-02-2014 |
20140015983 | MONITORING APPARATUS FOR TELEVISION - A monitoring apparatus includes a detection circuit, a filter circuit, an amplifying circuit, a regulation circuit, a delay and charging circuit, and a driving circuit. The detection circuit receives a video signal, and performs an operation to obtain an image signal from the video signal. The filter circuit obtains an average intensity of a luminance signal corresponding to the image signal. The delay and charging circuit charges an input capacitor when receiving a low level regulated signal from the amplifying circuit. The driving circuit activates an alarm when a charging voltage of the chargeable capacitor exceeds a predetermined value. | 01-16-2014 |
20140036093 | Detection of Graphics Added to a Video Signal - The invention allows detecting which graphics, if any,have been added to the video signal at any given time by utilizing only the various signals provided by prior art hardware. A first video signal, graphics signal(s), and a second video signal are received. It is then determined which graphics, if any, are present in a given frame of the received second video signal based on comparing actual values of pixels of the received second video signal and calculated values of pixels derived from the first video signal, and the graphics signal(s),and the combination of graphics signal(s)which produces the best match is searched for. | 02-06-2014 |
20140043491 | METHODS AND APPARATUSES FOR DETECTION OF ANOMALIES USING COMPRESSIVE MEASUREMENTS - A method for detection of anomalies using compressive measurements includes receiving sets of measurements, a set of measurements representing compressed coded data of a segment of data; collecting at least one statistic of the sets of measurements; and examining the at least one statistic to detect at least one anomaly in the at least one segment. | 02-13-2014 |
20140063264 | VIDEO PROCESSING DEVICE WITH SELF-CALIBRATION AND METHODS FOR USE THEREWITH - A video processing device includes a plurality of circuit modules that cooperate to process an input video signal into a processed video signal. A control circuit generates a plurality of adjustment parameters in response to a calibration of the plurality of circuit modules and that includes a register adjustment generator that generates a register file modification based on the plurality of adjustment parameters. | 03-06-2014 |
20140085484 | Efficient Displayport Wireless AUX Communication - In accordance with some embodiments, a DisplayPort control plane may be supported over a Wireless Gigabit Alliance or other wireless air interface. Some embodiments may efficiently optimize the amount of wireless bandwidth needed to accomplish tasks. | 03-27-2014 |
20140104435 | VARIABLE ENCODING AND DETECTION APPARATUS AND METHODS - Apparatus, methods, and articles of manufacture for media monitoring are disclosed. In particular, the example apparatus, methods, and articles of manufacture determine a media source type associated with a media signal and select an encoding or decoding mode based on the media source type. An encoding operation encodes the media signal using the selected encoding mode and a decoding operation decodes the media signal using the selected decoding mode. | 04-17-2014 |
20140111654 | ELECTRONIC DEVICE AND METHOD FOR MONITORING TESTING PROCEDURE - A method for monitoring a testing procedure using an electronic device includes constructing a coordinate system, presetting test parameters, and predetermining a position on a test platform corresponding to each preset test parameter based on the coordinate system. Positions of a test object on the test platform are changed during the testing procedure. Images of the test object are acquired from an image capturing device according to the test parameters. The method monitors the testing procedure by recognizing positions of the test object in the acquired images and determines whether the recognized positions match predetermined positions. When a recognized position does not match the predetermined position, the test object is determined to be positioned on the test platform improperly, and an alert message is outputted. | 04-24-2014 |
20140132777 | SYSTEM FOR PROACTIVELY TROUBESHOOTING SET TOP BOX ISSUES - A system for proactively troubleshooting set top box issues may include a media distribution network with a remote requesting device and a programming guide server. The programming guide server may be configured to identify a guide data retrieval profile of the requesting device, compare the guide data retrieval profile to an expected profile, and flag the requesting device for troubleshooting based on a lack of correspondence between the retrieval profile and the expected profile. Additionally methods for discovering related devices, predicting that the related devices also require troubleshooting, and limiting restorative measures to only those devices that have been confirmed to be affected by a service issue may also be implemented by the system. | 05-15-2014 |
20140146183 | METHODS AND APPARATUS FOR DISPLAYING VIDEO DESPITE A NONFUNCTIONAL OPERATING SYSTEM - A first video messaging service, running on top of an operating system in a data processing system, automatically presents a first video message. After using the first video messaging service to present the first video message, the data processing system automatically determines whether the first video messaging service has become nonfunctional. In response to determining that the first video messaging service has become nonfunctional, the data processing system automatically uses a backup video messaging service to present a second video message. The backup video messaging service operates in a boot environment. In one embodiment, the data processing system is configured to provide digital signage, the first video messaging service presents content for the digital signage when the operating system is operational, and the second video messaging service presents content for the digital signage when the operating system is nonfunctional. Other embodiments are described and claimed. | 05-29-2014 |
20140198222 | OPTICAL MONITORING DEVICE FOR AN IMAGING SYSTEM - An optical monitoring device for an optical imaging system having a focal plane, an optical axis and an entry pupil, forming an image of a scene substantially at infinity on an image detector disposed substantially in the focal plane, comprises: a virtually point-like emission source at the periphery of the detector and substantially in the focal plane; a reflecting element with a plane surface upstream of the imaging system relative to the direction of light rays coming from the scene, and according to a position and inclination where a monitoring image of the source produced by the optical system and reflected by the reflecting element is substantially in the focal plane on a detection element connected to a monitoring image analyzer allowing potential optical defects to be identified; the reflecting element having an annular shape allowing passage of light rays coming from the scene and passing through the entry pupil. | 07-17-2014 |
20140232878 | Method and Apparatus for Obtaining Video Quality Parameter, and Electronic Device - Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment. | 08-21-2014 |
20140240516 | ALIGNED VIDEO COMPARISON TOOL - A video quality comparison tool provides for direct visual perceptual comparison of video sequences. Two inputs are presented at the same position and size, with no-look user choice of which to see and easy back-and-forth comparison while the videos are playing, single-stepping, or paused. | 08-28-2014 |
20140267779 | ALIGNMENT OF VIDEO FRAMES - In embodiments, apparatuses, methods and storage media are described that are associated with determination of frame alignment. In embodiments, a similarity value matrix may be determined representing similarity values for pairs of frames from two pieces of video content. An alignment score matrix may be determined from the similarity scores. Multiple sets of frames may be selected from the two pieces of video content and alignment score matrices determined for each set. From these alignment score matrices, an alignment of frames may be determined. In embodiments, a Needleman-Wunsch process may be used to compute alignment scores as well as to compute alignments based on alignment score matrices. Other embodiments may be described and claimed. | 09-18-2014 |
20140293066 | SYSTEM AND METHOD FOR LENS SHADING IMAGE CORRECTION - A system and method for correcting image data. Embodiments of the present invention provide calibration and image correction to overcome various lens effects including lens shading and lens imperfections. In one embodiment, the correction of image data is performed via utilization of a spline surface (e.g., Bezier surface). The use of spline surfaces facilitates efficient hardware implementation. The image correction may be performed on a per channel and illumination type basis. In another embodiment, the present invention provides a method for determine a spline surface to be used for calibrating an image signal processor to be used in correcting image data. | 10-02-2014 |
20140293067 | Method of Evaluating at Least one Defect of Quality in a Data Signal, Associated Device and Computer Program - Method of evaluating a defect of quality in a data signal, associated device and computer program. The method evaluates the defect of a carrier signal bearing data intended to be restored to a recipient, the signal including a video component and audio component. The method includes the following steps implemented on at least one sample of the signal: detection of a defect in the video component of the sample and calculation of a duration associated with the defect; assigning a class of defect to the defect detected as a function of its associated duration; according to the class of defect assigned, obtaining a result of searching for a defect in the audio component at the instants corresponding to the sample; deciding to confirm the detection of a defect of quality in the sequence as a function of the result of the search for a defect in the audio component. | 10-02-2014 |
20140307103 | DISTORTION/QUALITY MEASUREMENT - Various implementations address distortion and quality measurements. Certain implementations relate to distortions resulting in a freeze-with-skip and/or a freeze-without-skip. In one implementation, a pause term provides an indication of distortion associated with a pause arising from not displaying one or more consecutive pictures that are not to be displayed. A motion term provides an indication of distortion associated with a related change in motion. A combined indicator is based on an addition of the pause term and the motion term. In another particular implementation, a first indicator indicates distortion across one or more types of distortive effects that results from not displaying a first set of pictures. A second indicator indicates corresponding distortion with respect to a second set of pictures. The first indicator and the second indicator are combined in a non-linear manner. | 10-16-2014 |
20140320670 | TEST DEVICE AND TEST METHOD FOR TESTING BUTTON FUNCTION OF REMOTE CONTROL - A test device for testing functions of buttons of a remote control includes a storage unit, a pressing apparatus, and a processing unit. Identification (ID) information of each of the buttons and a predetermined code corresponding to each of the buttons are stored in the storage unit. When a control signal is received from the remote control after a button is pressed, the control signal is decoded to obtain a code of the control signal and the ID information of the button, which is being pressed. The code of the control signal is compared with the predetermined code stored in the storage unit corresponding to the pressed button to determine whether the pressed button is malfunctional. | 10-30-2014 |
20140340527 | METHODS AND APPARATUS FOR STORING AND DELIVERING COMPRESSED DATA - A video device having data lanes and a method of operating the video device includes generating performance monitoring and/or debug data in response to the operation of the video device. The generated data is sampled from component of the video device operating in various clocking domain. The data sampled from the components is combined into a unified stream which is independent of the various clocking domain. The unified stream is transmitted across one more data lanes of a video link along with corresponding audio and/or video data in real time. | 11-20-2014 |
20140347497 | PROJECTOR, MULTI-PROJECTION SYSTEM, AND METHOD FOR CONTROLLING PROJECTOR - A projector that projects an image includes a communication section that sends a projection request command that requests another projector connected to the projector to project a test image, an imaging section that captures an image of the test image projected in response to the projection request command by the another projector, and a layout recognition section that recognizes a relative layout relationship between the projector and the another projector based on the image captured by the imaging section. | 11-27-2014 |
20140362233 | SYSTEM AND METHOD FOR RECONFIGURATION OF AN ENTERTAINMENT SYSTEM CONTROLLING DEVICE - An entertainment device is used to notify a user of a change in an audio visual entertainment system configuration in which at least one of a plurality devices is connected to the entertainment device as an audio and/or visual source and at least one of the plurality of devices is connected to the entertainment device as an audio and/or visual output destination for the entertainment device and/or to notify a user of a perceived problem in a configuration of a controlling device used to control functional operations of the audio visual entertainment system. | 12-11-2014 |
20140368665 | IPTV DIAGNOSTICS SYSTEM - A method of testing a video decoding device connected to an IPTV service, the IPTV service having a server, the method comprising tuning the video decoding device to a first channel of the IPTV service, the video decoding device receiving the first channel and decoding video from the first channel, the video decoding device collecting data concerning the decoded video and sending the data to the server, detuning the video decoding device from the first channel, the server analyzing the data to generate results; and the server displaying the results. | 12-18-2014 |
20150029343 | Automated Quality Control Of Media Asset - Some aspects of the disclosure relate to automated quality control of a media asset. The quality control can comprise testing automatically various facets of content reproduction. In one embodiment, three facets can be tested: (1) access to a rendering unit configured to reproduce content of the media asset; (2) rendering of at least a portion of visual content of the media asset; and (3) rendering at least a portion of the aural content of the media asset. In one aspect, testing the rendering of the visual content can be differential in that features of the rendering can be monitored at a plurality of instants during content reproduction and can be compared for two or more instants of the plurality of instants. In another aspect, based on the comparison, the media asset can be deemed to pass the quality control and thus be accepted for consumption. | 01-29-2015 |
20150062350 | LIGHT PARAMETER MEASUREMENT METHOD AND DEVICE, SCREEN ADJUSTMENT METHOD AND ELECTRONIC DEVICE - A method and device for light parameter measurement, a method for screen adjustment and an electronic device are provided. A current image parameter corresponding to a type of a parameter to be measured obtained by a camera under a first operation mode is acquired, a light parameter value corresponding to the current image parameter is determined based on a preset correspondence between an image parameter and a light parameter, and the light parameter value corresponding to the current image parameter is taken as a current light parameter. | 03-05-2015 |
20150070508 | OUTPUT CIRCUIT AND METHOD OF DETECTING WHETHER LOAD CONNECTED TO CONNECTING PORT AND RELATED VIDEO OUTPUT CIRCUIT - Described in example embodiments herein are techniques for detecting a connection between a load and a connecting port. In accordance with an example embodiment, an output circuit is able to detect a corresponding connecting port includes a voltage output stage, a reference current source and a determination circuit. The voltage output stage is arranged to output a voltage signal to an output end of the output circuit. The reference current source is arranged to selectively provide a first current to the output end. The determination circuit is arranged to generate a determination signal according to whether a second voltage signal is identical to a first voltage signal that is caused by the first current flowing into the output end. The determination signal indicates the load is connected to the connecting port when the second voltage signal is not identical to the first voltage signal. | 03-12-2015 |
20150092065 | LINK TRAINING IN A VIDEO PROCESSING SYSTEM - A method for training the lanes of a main data link includes setting an initial lane voltage swing and conducting link at the initial value, and determining if link training was successful. If link training at the initial value of lane voltage swing was not successful, the value of lane voltage swing is incremented to a predetermined value. A determination is made as to whether the predetermined value of lane voltage swing exceeds a threshold value, and link training is ended if the predetermined value of lane voltage exceeds the threshold value. If the predetermined value of lane voltage swing does not exceed the threshold value, link training is conducted at the predetermined value of lane voltage swing until link training is successful or until a predetermined number of attempts at the predetermined value of lane voltage swing fail to successfully train the link. | 04-02-2015 |
20150092066 | Using a Second Camera to Adjust Settings of First Camera - A device may operate a first image-capture system to capture first image data of a scene. While the first image-capture system is capturing the first image data, the device may operate a second image-capture system to determine an updated value for the first image setting, and send an instruction to the first image-capture system that indicates to use the updated value for the first image setting to continue to capture the first image data. | 04-02-2015 |
20150109459 | AUTOMATED QUALITY CONTROL OF AUDIO-VIDEO MEDIA - In an audio-video process chain where measurements are taken between process stages, each measurement is converted to a threshold confidence by normalizing where required and comparing with a threshold value of acceptability taking into account the latitude of acceptability associated with that threshold and an error function relating to the reliability of the measurement. That threshold confidence extends linearly between a value denoting certainty of acceptability and a value denoting certainty of unacceptability. | 04-23-2015 |
20150138370 | METHOD AND APPARATUS FOR CALIBRATING AN AUDIO PLAYBACK SYSTEM - A method, apparatus and computer program product are provided to facilitate calibration of an audio playback system with a video presented upon a display. In the context of a method, an image including a display from a first location is received. The method also includes determining a dimension of the display within the image and determining an angle of the display based upon the dimension of a display determined within the image and the first location. The method further includes permitting an audio playback system associated with the display to be calibrated, such as with a video to be presented upon the display, based upon the determined angle. A corresponding apparatus and computer program product are also provided. | 05-21-2015 |
20150138371 | INTEGRATED REFERENCE PIXEL - Representative implementations of devices and techniques provide dynamic calibration for imaging devices and systems. A reference pixel is arranged to receive an electrical reference signal and to output a calibration signal. The reference signal may be based on imaging illumination. | 05-21-2015 |
20150334386 | AUTOMATIC VIDEO COMPARISON OF THE OUTPUT OF A VIDEO DECODER - The automatic video comparison system for measuring the quality of decoded data described herein provides a method for measuring the quality of decoded data at the level of sub-units of a unit of data, for instance at the level of sub-blocks of a video frame. The system can therefore locate defects that may not otherwise be detected by an automated system that measures quality at the level of the entire frame. Processing encoded media is computationally intensive, thus the automatic video comparison system uses a distributed computing system in order to distribute the computations across many compute resources that are capable of operating in parallel. | 11-19-2015 |
20160029016 | VIDEO DISPLAY METHOD AND USER TERMINAL FOR GENERATING SUBTITLES BASED ON AMBIENT NOISE - A video display method of a user terminal, includes determining whether ambient noise measured when a video is played is in an allowable range, and generating subtitles based on a voice signal included in the video in response to the ambient noise being determined to be out of the allowable range. The method further includes displaying the generated subtitles with the video. | 01-28-2016 |
20160059127 | INFORMATION PROCESSING APPARATUS, METHOD OF CONTROLLING THE SAME AND STORAGE MEDIUM - An information processing apparatus provides a system, which receives inputs and renders one or more images according to the inputs, with an input set including one or more inputs retrieved from storage unit configured to store input sets and first values. Each of the first values corresponds to one of first outputs, and each of the first outputs was obtained by each of the stored input sets being previously provided to the system. The apparatus obtains second output by providing the input set to the system and a second value corresponding to the second output. The apparatus checks whether the second value matches one of the first values and outputs a result of the check, and then provides the system with one of the stored input sets corresponding to one of the first values, which matches the second value. | 03-03-2016 |
20160073105 | METHOD, APPARATUS, AND SYSTEM FOR MONITORING QUALITY OF OTT VIDEO - The present invention discloses a method, an apparatus, and a system for monitoring quality of an OTT video, which can implement monitoring of quality of an OTT video in a convenient manner. An OTT video monitoring apparatus intercepts a message sent by an OTT video terminal to an OTT video source for requesting to watch an OTT video; sends a response message to the OTT video terminal, where the response message carries a monitoring instruction, so that the OTT video terminal obtains identifier information of the OTT video according to the monitoring instruction; the OTT video monitoring apparatus obtains the identifier information of the OTT video from the OTT video terminal; and monitors quality of the OTT video according to the identifier information of the OTT video. | 03-10-2016 |