Patent application number | Description | Published |
20090225225 | VIDEO SIGNAL PROCESSING DEVICE AND VIDEO SIGNAL PROCESSING METHOD - An decomposition filter includes a top-field low-frequency decomposition filter and a bottom-field low-frequency decomposition filter whose coefficient is obtained by vertically inverting the coefficient of the top-field low-frequency decomposition filter. It also includes a top-field high- frequency decomposition filter and a bottom-field high-frequency decomposition filter whose coefficient is obtained by vertically inverting the coefficient of the top-field high-frequency decomposition filter. The above-described filters are switched and used according to which an input signal is for, a top-field or a bottom-field. | 09-10-2009 |
20090231487 | Image processing apparatus and method for format conversion - A signal processing apparatus converts interlaced 4:2:2-format video signals including a luminance component and two chroma components into interlaced 4:2:0 format video signals. A downsampling low-pass filter has such a group delay that a modulo-1 remainder of the group delay at frequency ω=0 is substantially equal to 0.25. The downsampling low-pass filter is designed together with an associated upsampling low-pass filter such that the first downsampling low-pass filter and the upsampling low-pass filter substantially satisfy perfect reconstruction filter bank condition, and such that a sum of the group delay of the first downsampling low-pass filter and a group delay of a normalized filter obtained by making the sum of all the coefficients of the upsampling low-pass filter equal to 1 is substantially equal to an integer number at frequency ω=0. | 09-17-2009 |
20090232199 | Encoding apparatus, decoding apparatus, encoding method, and decoding method - An encoding apparatus encodes image data using a picture order count (POC) that indicates a display order of a picture. The encoding apparatus includes a remainder calculating unit that calculates a remainder by dividing an absolute frame number counted from an instantaneous decoding refresh (IDR) picture by a divisor which is a number of reference frames in one POC cycle, and a remainder code converting unit that coverts the remainder calculated by the remainder calculating unit into a code. A decoding apparatus decodes image data using the POC. The decoding apparatus includes a remainder extracting unit that, when random access decoding is performed, extracts a remainder by decoding a remainder code added to a picture at a random decoding start position, and an initializing unit that initializes an input value of a decoding process for the POC, by using the remainder extracted by the remainder extracting unit. | 09-17-2009 |
20090238261 | Method, apparatus, and system for processing moving image - A moving image processing system includes an encoding apparatus encoding a moving image by encoding a picture order count (POC) while inserting a recovery point, and a decoding apparatus decoding the moving image encoded by the encoding apparatus. The encoding apparatus includes an insertion permission/rejection determining unit that determines whether a decoded frame is a reference frame and its frame number from an instantaneous decoding refresh frame is a positive integer times as large as a number of reference frames within a POC cycle, and a recovery point inserting unit that inserts the recovery point into the frame depending on a result of determination by the insertion permission/rejection determining unit. The decoding apparatus includes a POC decoding unit that decodes the POC by executing an initializing process such that the frame number within the POC cycle used in decoding the POC becomes zero, when decoding by random accessing is started. | 09-24-2009 |
20090252218 | MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING METHOD AND MOVING IMAGE DECODING METHOD - In a decoding apparatus in accordance with H.264, when the POC type is determined as “1” and a recovery point SEI is detected, the maximum frame number MaxFrameNum (or its integral multiple) is set as the initial value of the frame number offset (FrameNumOffset). | 10-08-2009 |
20100014764 | IMAGE ENCODING/DECODING DEVICES AND IMAGE BAND DECOMPOSING/COMPOSING DEVICES - According to the invention, a down-sampler samples down a signal whose low frequency component is cut to ½. A sign inversion unit cyclically multiplies the sampled-down high-frequency sub-band signal by a negative value and outputs a sign-inverted high-frequency sub-band signal. Thus, in the frequency characteristic of the high-frequency sub-band signal, the signal power on the low frequency side can be increased. | 01-21-2010 |
20100226624 | INFORMATION PROCESSING APPARATUS, PLAYBACK DEVICE, RECORDING MEDIUM, AND INFORMATION GENERATION METHOD - A detecting section in an information processing apparatus is configured to detect an event sound from audio, the audio having been recorded when video was shot. The information processing apparatus also includes a calculating section configured to determine an event playback time at which an image associated with the event sound is played back in a video playback time sequence, the video playback time sequence corresponding to a playback speed lower than a shooting speed of the video and a determining section configured to determine a playback start time of the event sound during the video playback time sequence in accordance with the event playback time. | 09-09-2010 |
20100272170 | IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD AND MEDIUM ON WHICH IMAGE ENCODING PROGRAM IS RECORDED - An image encoding apparatus configured to perform sub-band encoding, the apparatus includes: a plurality of encoding units configured to encode an image signal separated into a plurality of sections; a plurality of storage units configured to hold data encoded by the encoding units; and a control unit configured to determine capacities of encoded data of the section of the separated image signal on the basis of statistical information capacities of the section of the separated image signal and data capacities after encoding by the encoding units. | 10-28-2010 |
20110182304 | Data transmitting device and data receiving device - A data transmitting device transmits section information, a data broadcasting content, and a broadcasting content in a multiplexed manner. The data transmitting device includes a specified-information embedding unit that embeds information related to a specified image into the section information; a multiplexing unit that multiplexes the section information embedded with the specified information by the specified-information embedding unit, the data broadcasting content, and the broadcasting content; and a transmitting unit that transmits data multiplexed by the multiplexing unit to a data receiving device. | 07-28-2011 |
20110187932 | DIGITAL BROADCAST METHOD, DATA RECEIVING DEVICE, AND DATA TRANSMITTING DEVICE - A digital broadcast method includes receiving audio and video data that form a predetermined content for digital broadcasting; receiving related data indicating a content related to the predetermined content; performing a control that transmits the received related data to a data receiving device prior to transmitting the received audio data and video data; receiving the audio and video data that form the predetermined content and the related data of the predetermined content that have been subject to the control; changing a viewing channel in response to a changing instruction of the viewing channel from a viewer; and outputting, when the viewing channel is changed from a first channel number to a second channel number at the changing and then changed to the first channel number again, the received related data with audio and video data corresponding to the first channel number to an output unit. | 08-04-2011 |
20130128991 | MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING METHOD AND MOVING IMAGE DECODING METHOD - In a decoding apparatus in accordance with H.264, when the POC type is determined as “1” and a recovery point SEI is detected, the maximum frame number MaxFrameNum (or its integral multiple) is set as the initial value of the frame number offset (FrameNumOffset). | 05-23-2013 |
20130278823 | VIDEO SIGNAL ENCODING APPARATUS AND VIDEO SIGNAL ENCODING METHOD - A processor converts an input video signal via a first filter, and outputs a video signal for a determination obtained by converting the video signal via a second filter. Both filters satisfy a stipulated condition. The processor calculates the degree of matching between the input video signal and the video signal for the determination. The processor determines whether or not the input video signal has been converted by using a filter that satisfies the stipulated condition in conversion at a preceding stage. The processor generates an encoded string by encoding the video signal in the second format converted via the first filter, and the determination result. In this way, whether or not and where a video is that converted by using a filter different from a stipulated filter can be automatically determined. | 10-24-2013 |
20140201798 | VIDEO MULTIPLEXING APPARATUS, VIDEO MULTIPLEXING METHOD, MULTIPLEXED VIDEO DECODING APPARATUS, AND MULTIPLEXED VIDEO DECODING METHOD - A video multiplexing apparatus includes: a control unit which determines first decode/display time information and second decode/display time information for each picture in video data and for each encoding unit of first media data; a video packet generating unit which appends the first and second decode/display time information for the picture to encoded data of the video data; and a media packet generating unit which appends the first and second decode/display time information for the encoding unit to encoded data of the first media data. The first decode/display time information is used when the decoding unit of the video data is a picture, and the second decode/display time information is used when the decoding unit is a sub-picture. The picture display time based on the second decode/display time information is earlier than the picture display time based on the first decode/display time information. | 07-17-2014 |