Class / Patent application number | Description | Number of patent applications / Date published |
348175000 | CAMERA WITH BUILT-IN TEST SIGNAL GENERATOR, TEST PATTERN, OR ADJUSTING ADJUNCT | 58 |
20080316317 | OPTICAL ALIGNMENT OF CAMERAS WITH EXTENDED DEPTH OF FIELD - A method for calibration of an imaging device that includes a sensor and optics for forming an image on the sensor. The method includes making a first image quality measurement, based on an output of the sensor, while imaging a first target at a first distance from the device and varying an offset between the optics and the sensor. A second image quality measurement is made while imaging a second target at a second distance from the device, which is different from the first distance, and varying the offset between the optics and the sensor. A working point of the optics is set relative to the sensor responsively to the first and second image quality measurements. | 12-25-2008 |
20090189985 | IMAGE PROCESSING DEVICE FOR PROVIDING IMAGE QUALITY INFORMATION AND METHOD THEREOF - An image processing apparatus and method for providing image evaluation information is provided. The image processing apparatus includes: an encoder to encode an external image signal input from an image sensor to generate encoded image data; an evaluation unit to evaluate the image data based on analysis information associated with the external image signal to generate evaluation information; and an interface unit to externally transmit the evaluation information associated with the image data. | 07-30-2009 |
20100020178 | CALIBRATING A CAMERA SYSTEM - A method of calibrating a camera system which is capable of recording at least two images simultaneously is described. The method comprises the step of processing a first pair of images, wherein the processing step comprises transforming at least one of a first and a second image of the first pair through a projective map on a plane, the map depending on one or more parameter values, so as to align an epipolar line in the first image with a corresponding epipolar line in the second image of the first pair, resulting in a second pair of images. The method further comprises estimating respective values for a disparity, which values associate respective first pixels along a first epipolar line in a first image of the second pair with respective second pixels along a corresponding second epipolar line in a second image of the second pair, and displacing respective pixels of the first epipolar line in the first image of the second image pair in accordance with a respective value of the disparity for the respective pixels. The method further comprises determining a measure of error between the first and the second image of the second image pair, dependent on the one or more parameters, determining an update for the one or more parameter values for reducing a value of the measure of error, and updating the one or more parameter values, using the update. | 01-28-2010 |
20100188512 | METHOD AND SYSTEM FOR TESTING IMAGE PIPELINES - A method for testing image pipelines includes transforming an untransformed captured image multiple times using a plurality of pipelines, thereby generating a plurality of transformed images, and comparing a functional set of metrics associated with each of the plurality of transformed images with a functional set of metrics associated with each image in a ground truth set. From the comparison, a determination is made as to which of the plurality of pipelines generates a transformed image that is functionally closest to an image in the ground truth set. | 07-29-2010 |
20100245590 | CAMERA SENSOR SYSTEM SELF-CALIBRATION - Systems and methods for camera sensor system self-calibration are disclosed. In an exemplary embodiment, a method may include exposing a camera sensor system to a known output from a camera display. The method may also include determining a calibration value by comparing image signals from the camera sensor system to expected values based on the known output from the camera display. The method may also include storing a calibration value in memory for retrieval during camera use. | 09-30-2010 |
20100295948 | Method and device for camera calibration - Techniques pertaining to methods and devices for calibrating camera parameters are disclosed. According to one aspect of the present invention, objects on an image are detected and features on the objects, such as the top of a person, are identified. Perspective parallel lines based on the object features are constructed and vanishing points from the converged perspective parallel lines are determined. A vanishing line is defined according to the vanishing points. The intrinsic parameters, such as focal length, and the extrinsic parameters, such as tilting and pan angles, of a camera are calibrated according to the vanishing points, the vanishing line and a reference object with known dimensions, or known camera angles, The calibrated camera parameters are used for accurate photogrammetric measurements and computer vision applications. | 11-25-2010 |
20100315512 | Method and System for Processing Images - A method for processing images includes: obtaining video images or capturing a series of images in real time; detecting difference between two adjacent images, and reserving one of the images when the difference is less than a preset threshold; detecting feature information of the obtained images; and performing definition-related treatment for the images detected as having the feature information, comparing definition of each image with a preset definition criterion, and reserving clear images. | 12-16-2010 |
20110069176 | CAMERA MODULE AND TESTING METHOD THEREOF - A camera module includes an image capture unit used to capture at least one image of a subject. An image analysis unit is integrated in the camera module to analyze the quality of the image captured by the image capture unit to determine whether the camera module meets one or more preset requirements. The camera module further includes an output unit used to output one or more analysis results of the image analysis unit to determine whether the camera module meets preset capability requirements. | 03-24-2011 |
20110228101 | METHOD AND DEVICE FOR DETERMINING CALIBRATION PARAMETERS OF A CAMERA - A method of determining calibration parameters of a camera comprises taking a first image of an object, taking a second image of the object, wherein the position of the camera with respect to the object is changed between the first and the second image, the calibration parameters of the camera being fixed between the first and the second image, determining a transformation that is adapted to transform a portion of the first into a corresponding portion of the second image, and determining the calibration parameters from the transformation. | 09-22-2011 |
20110242329 | ELECTRONIC CAMERA WITH SELF-EXPLANATION/DIAGNOSIS MODE - An electronic camera having a plurality of functions including capturing and recording images is provided. The electronic camera includes an operation input unit for inputting external operations that designate corresponding functions of the camera to be performed, an image pickup unit for capturing the image of an object, and a recorder for recording the image captured by the image pickup unit. The electronic camera further includes a playback unit for at least playing back image information that is recorded on the recording medium and a mode selector for selecting one operation mode of the camera from a plurality of available operation modes that include an operation explanation mode. If the operation explanation mode is selected at the mode selector, the playback unit plays back an operation guide that is pre-stored in a memory, the operation guide explaining at least one of the camera operations and functions thereof. | 10-06-2011 |
20110254960 | IMAGE CONVERTER - An image converter includes: a pixel array having multiple imager pixels for outputting imager pixel signals, and a readout and processing device for reading out the pixel array and for receiving and processing the imager pixel signals. The pixel array has multiple reference pixels for outputting reference pixel signals, and at least one reference current device for outputting reference currents to the reference pixels for simulating illumination intensities. The readout and processing is adapted to jointly read out, receive, and process the reference pixel signals and the imager pixel signals. | 10-20-2011 |
20110285856 | IMAGE CORRECTION METHOD FOR CAMERA SYSTEM - Disclosed herein is an image correction method for a camera system, which minimizes the amount of data that must be stored by a camera system and which can conveniently correct mounting errors of cameras. In the image correction method for a camera system, image data about a reference ground, which is captured by a camera and on which at least one ground mark is indicated, is acquired. Coordinates of a captured ground mark are obtained based on the image data. A preset Look-Up Table (LUT) is corrected using errors between the coordinates of the captured ground mark and coordinates of a preset reference mark. The ground mark and the reference mark may respectively have four or more corresponding correction points. | 11-24-2011 |
20110298933 | DUAL PROCESSING OF RAW IMAGE DATA - Systems, methods, and devices for dual processing of raw image data by main image processing and alternative image processing capabilities of an electronic device are provided. According to an embodiment, alternative image processing may analyze a first copy of a frame of raw image data before a second copy of the frame of raw image data is processed by main image processing. Thereafter, the main image processing may process the second copy of the frame of raw image. The main image processing may be calibrated based at least in part on the analysis of the first copy of the frame of raw image data. | 12-08-2011 |
20110310250 | CALIBRATION INDEX FOR USE IN CALIBRATION OF ONBOARD CAMERA, METHOD OF ONBOARD CAMERA CALIBRATION USING THE CALIBRATION INDEX AND PROGRAM FOR CALIBRATION APPARATUS FOR ONBOARD CAMERA USING THE CALIBRATION INDEX - For use in calibration of an onboard camera, there are provided a calibration index free of erroneous detection and a method of calibrating an onboard camera using such calibration index. The calibration index for use in onboard camera calibration includes a curved graphic formed of a curved line surrounding a predetermined region and a linear graphic comprising at least two straight lines forming an intersection point within the region surrounded by the curved graphic, the curved graphic and the linear graphic being formed in a same plane. A plurality of segments separated by the curved line forming the curved graphic and the straight lines forming the linear graphic are colored in a checkered pattern. | 12-22-2011 |
20120044358 | AUTOMATIC CONFIGURATION - A method of automatically configuring a device. The method comprises: obtaining an image of a scene comprising a machine-readable code containing configuration information for the device; processing the image to extract the configuration information; and using the configuration information to configure the device. The step of obtaining the image comprises at least one of: capturing the image using a camera; or receiving the image captured by a camera. The configuration information comprises date or time information. | 02-23-2012 |
20120105648 | DEAD PIXEL COMPENSATION TESTING APPARATUS - A dead pixel compensating apparatus includes, inter alia, a pattern generation unit generating a programmable test pattern including data with respect to at least one dead pixel; a register array storing the test pattern; a dead pixel compensation unit receiving the test pattern stored in the register array and performing a dead pixel compensation algorithm to output compensation data; and a determination unit comparing the test pattern and the compensation data to determine whether or not the dead pixel compensation algorithm has an error, wherein a dead pixel compensation algorithm for compensating for a dead pixel of an image sensor in image data supplied from the image sensor is tested. | 05-03-2012 |
20120105649 | ADJUSTMENT METHOD, ADJUSTMENT APPARATUS, METHOD OF MANUFACTURING OPTICAL SYSTEM, IMAGE PICKUP APPARATUS, AND METHOD OF MANUFACTURING IMAGE PICKUP APPARATUS - An adjustment method of the present invention includes an evaluation step of evaluating an imaging performance of an optical image that is formed via an optical system, a classification step of classifying the imaging performance evaluated in the evaluation step, a restoration step of generating a restored image of the optical image based on a classification of the imaging performance, and an adjustment step of adjusting the optical system using an adjustment unit of the optical system based on the restored image. | 05-03-2012 |
20120133779 | ROBUST RECOVERY OF TRANSFORM INVARIANT LOW-RANK TEXTURES - A “Transform Invariant Low-Rank Texture” (TILT) Extractor, referred to as a “TILT Extractor” accurately extracts both textural and geometric information defining regions of low-rank planar patterns from 2D images of a scene, thereby enabling a large range of image processing applications. Unlike conventional feature extraction techniques that rely on point-based features, the TILT Extractor extracts texture regions from an image and derives global correlations or transformations of those regions in 3D (e.g., transformations including translation, rotation, reflection, skew, scale, etc.). These image domain transformations inherently provide information relative to an automatically determinable camera viewing direction. In other words, the TILT Extractor extracts low-rank regions and geometric correlations describing domain transforms of those regions relative to arbitrary camera viewpoints. The TILT Extractor also identifies sparse error in image intensity or other color channels resulting from noise, occlusions or other artifacts, thereby allowing elimination or reduction of such errors in images. | 05-31-2012 |
20120182429 | VARIABLE BEAMFORMING WITH A MOBILE PLATFORM - A mobile platform includes a microphone array and is capable of implementing beamforming to amplify or suppress audio information from a sound source. The sound source is indicated through a user input, such as pointing the mobile platform in the direction of the sound source or through a touch screen display interface. The mobile platform further includes orientation sensors capable of detecting movement of the mobile platform. When the mobile platform moves with respect to the sound source, the beamforming is adjusted based on the data from the orientation sensors so that beamforming is continuously implemented in the direction of the sound source. The audio information from the sound source may be included or suppressed from a telephone or video-telephony conversation. Images or video from a camera may be likewise controlled based on the data from the orientation sensors. | 07-19-2012 |
20120257065 | SYSTEMS AND METHODS TO CALIBRATE A MULTI CAMERA DEVICE - Present embodiments contemplate systems, apparatus, and methods to calibration a multi camera device. Particularly, present embodiments contemplate initiating a calibration of multiple cameras in response to a predetermined event. A calibration records current environmental conditions along with the sensor positions of each camera when focused. By recording a plurality of calibration points under a variety of imaging and environmental conditions, a more accurate synchronization of the multiple cameras' focus positions can be achieved. | 10-11-2012 |
20120314086 | CAMERA TEST AND CALIBRATION BASED ON SPECTRAL MONITORING OF LIGHT - Systems and methods for testing and calibrating camera modules based on a benchmark standard are provided. The systems can include a receptacle for receiving a camera module under test and a spectrometer. The test station can capture a test measurement using the camera module under test while contemporaneously capturing a true measurement using the spectrometer. Using the true measurement, the test station can predict how the benchmark standard would have performed in those conditions and compare that expected performance to the test measurement. Any differences can be stored in memory within the camera module under test for later retrieval to optimize image processing. | 12-13-2012 |
20130113942 | Calibrating a One-Dimensional Coded Light 3D Acquisition System - A camera intrinsic calibration may be performed using an object geometry. An intrinsic camera matrix may then be recovered. A homography is fit between object and camera coordinate systems. View transformations are finally recovered. | 05-09-2013 |
20130250127 | Method for Checking Camera - A method for checking a camera includes the steps of capturing an image of an object using a photo-sensitive element, converting the color level value of each of a plurality of pixels of the image into image gray level values, and when one of the image gray level values is higher than a predetermined gray level threshold value, displaying an alarm message on the screen of the camera. A camera is also disclosed herein. | 09-26-2013 |
20130293724 | IMAGING SYSTEMS WITH SIGNAL CHAIN VERIFICATION CIRCUITRY - An imaging system may include an array of image pixels and verification circuitry. The verification circuitry may inject a test voltage into the pixel signal chain of a test pixel. The test voltage may be output on a column line associated with the column of pixels in which the test pixel is located. The test signal may be provided to a column ADC circuit for conversion from an analog test signal to a digital test signal. Verification circuitry may compare the digital output test signal with a predetermined reference signal to determine whether the imaging system is functioning properly (e.g., to determine whether column ADC circuits or other circuit elements in the pixel signal chain are functioning properly). If the output test signals do not match the expected output signals, the imaging system may be disabled and/or a warning signal may be presented to a user of the system. | 11-07-2013 |
20130314549 | ELECTRONIC APPARATUS, CONTROL METHOD OF AN ELECTRONIC APPARATUS, CONTROL PROGRAM OF AN ELECTRONIC APPARATUS, AND VIDEO DISPLAY APPARATUS - According to one embodiment, an electronic apparatus includes: an imaging module configured to shoot a video display apparatus on which a first image is displayed, and output a shot image; a calibrating module configured to perform camera calibration using the first image in the output shot image; a calculating module configured to calculate information to be used for image quality adjustments of the video display apparatus using results of the camera calibration and the shot image; and a transmitting module configured to transmit the calculated image quality adjustment information to the video display apparatus. | 11-28-2013 |
20130329056 | COLOR CALIBRATION OF AN IMAGE CAPTURE DEVICE IN A WAY THAT IS ADAPTIVE TO THE SCENE TO BE CAPTURED - Method comprising the steps of:
| 12-12-2013 |
20140022395 | LENS DEVICE AND ITS CONTROL METHOD | 01-23-2014 |
20140036092 | Automatic Exposure Calibration And Compensation For Machine Vision - An automatic process for calibrating the optical image exposure value to compensate for changes in machine vision systems to maintain optimal exposure of captured images and adjust for the different characteristics among cameras components, such as imaging sensor sensitivity, LED strength, external lighting, reflective functions of any background material, different external lighting conditions, possible changes or updates of the systems over the years, such as LED changes, and even the aging of camera sensor and LEDs over time. A series of images of a target are captured with a predetermined sequence of exposure values, the saturation exposure percentage of a region of interest is calculated in each of the images, and the saturation exposure percentages are compared to determine the exposure value that has a saturation exposure percentage that varies the least from the saturation exposure value of the preceding and following exposure values. | 02-06-2014 |
20140071297 | METHOD AND APPARATUS FOR A CAMERA HAVING SIMPLE LENS - In an image capturing and processing system, a device and method is provided. The lens is made of simple lens with high diffractive materials and known strong color aberrations. The method includes the steps of: calibrating or measuring a Point Spread Function (PSF) for each color components at a set of distances, capturing image data, and calculating the image obtained using a de-convolution method based on the PSF found. | 03-13-2014 |
20140071298 | BLEMISH DETECTION SYTEM AND METHOD - A blemish detecting system includes an image capturing module, a brightness calculating module, a blemish detection module, a storage module, and a processor. The image capturing module captures an image. The image has a number of pixels. The brightness calculating module calculates the brightness values of the pixels. The blemish detection module gives serial numbers to the pixels according to the locations of the pixels, scans the pixels according to a first sequence, and marks the pixel of which the brightness value is less than a predetermined brightness value as a blemish. The storage module stores the serial numbers of the scanned pixels, and thus the blemish detection module does not need to scan the pixels for a second time. The brightness calculating module and the blemish detection module are computerized instructions and are executed by the processor. | 03-13-2014 |
20140098242 | Camera Pose Estimation - A method of camera pose estimation is provided that includes capturing a model image of a scene at a canonical camera pose, generating an image library from warped images of the model image and the model image, wherein each warped image is a transformation of the model image at a different pre-determined camera pose, capturing an image of the scene as a user moves the camera, reporting the current camera pose as a camera pose of the image when the image is acceptable, conditionally adding the first image to the image library when the first image is acceptable, and re-initializing the current camera pose to a camera pose selected from the image library when the first image is not acceptable. | 04-10-2014 |
20140118557 | METHOD AND APPARATUS FOR PROVIDING CAMERA CALIBRATION - A method for providing a camera calibration includes recovering geometric information from a single rectangular image, obtaining intrinsic and extrinsic construction information of a camera based on the recovered geometric information, obtaining a shooting position and real geometric information of the camera from the obtained intrinsic and extrinsic construction information of the camera. | 05-01-2014 |
20140168449 | IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, AND METHOD FOR DRIVING IMAGE PICKUP APPARATUS - There are provided an image pickup apparatus, an image pickup system, and a method for driving the image pickup apparatus which perform correction of a reference potential used in an operation performed by a successive approximation AD conversion circuit and correction of a digital signal, into which a pixel signal which is output by a pixel is converted. | 06-19-2014 |
20140198221 | IMAGE CAPTURE DEVICE CALIBRATION - A three-dimensional coordinate position of a calibration device is determined. Further, a code is emitted to an image capture device. The code indicates the three-dimensional coordinate position of the calibration device. In addition, an image of light emitted from the calibration device is captured. The light includes the code. An image capture device three-dimensional coordinate position of the calibration device is calibrated according to the real world three-dimensional coordinate position of the calibration device indicated by the code. | 07-17-2014 |
20140293065 | CAMERA - A camera includes a photo-sensitive element and a controller. The controller is electrically connected to the photo-sensitive element. The photo-sensitive element is configured to capture an image of an object. The controller is configured to convert a color level value of each of pixels of the image into an image gray level value, and the controller is configured to generate an alarm message to display on a screen of the camera when one of the image gray level values is higher than a predetermined gray level threshold value. | 10-02-2014 |
20140307102 | PROJECTION DEVICE AND AUTOMATIC PROJECTION CALIBRATION METHOD THEREOF - A projection device and an automatic projection calibration method thereof are disclosed. When the projection device boots up, an image pattern corresponding to a display data is projected through a projecting unit. The image pattern is sensed through an image sensor to obtain information of the image pattern. The information of the image pattern is compared with information of a previous image pattern through a processing unit to determine whether to execute an automatic calibration procedure. When the processing unit executes the automatic calibration procedure, a calibration pattern is projected through the projecting unit. The calibration pattern is sensed through the image sensor to obtain information of the calibration pattern. A calibration driving procedure is executed through the processing unit to convert imaging coordinates of the calibration pattern sensed through the image sensor into projecting coordinates of the projection device, so as to establish a coordinate conversion table. | 10-16-2014 |
20140340525 | RELIABILITY DETERMINATION OF CAMERA FAULT DETECTION TESTS - There is provided a method for determining the reliability of a fault detection of a camera in a camera system. According to the method data relating to environmental conditions are received ( | 11-20-2014 |
20140340526 | IMAGING APPARATUS, METHOD FOR CONTROLLING IMAGING APPARATUS, AND SYSTEM THEREFOR - An imaging apparatus includes an imaging unit having a predetermined pixel array, and a generation unit configured to generate a test video signal for evaluating consistency between a video signal generated by performing predetermined processing on a video signal output from the imaging unit, and the video signal output from the imaging unit. In the test video signal, a signal value of each pixel is set so as to exhaustively cover signal values within a predetermined range in a direction in a video image of the test video signal. The test video signal has a repetition pattern in the direction in the video image of the test video signal. A signal deviating from regularity of the repetition pattern is inserted at a predetermined position in the repetition pattern. The spatially or temporally adjacent repetition patterns have different phases from each other. | 11-20-2014 |
20140347496 | SELF TEST OF IMAGE SIGNAL CHAIN WHILE RUNNING IN STREAMING MODE - An imager including a self test mode. The imager includes a pixel array for providing multiple pixel output signals via multiple columns; and a test switch for (a) receiving a test signal from a test generator and (b) disconnecting a pixel output signal from a column of the pixel array. The test switch provides the test signal to the column of the pixel array. The test signal includes a test voltage that replaces the pixel output signal. The test signal is digitized by an analog-to-digital converter (ADC) and provided to a processor. The processor compares the digitized test signal to an expected pixel output signal. The processor also interpolates the output signal from a corresponding pixel using adjacent pixels, when the test switch disconnects the pixel output signal from the column of the pixel array. | 11-27-2014 |
20140354826 | REFERENCE AND NON-REFERENCE VIDEO QUALITY EVALUATION - Devices and methods for determining image quality using full-reference and non-reference techniques. Full reference image quality may be determined prior to output of an image or video frame from an image sensor processor by temporarily retaining image data from the image sensor and comparing processed image data of the image to the retained, non-processed image data of the same image. Full reference image quality determination may be assisted by a heuristic-based fault indicator. Image quality may also be determined by a non-reference technique of matching the image to one of various scenarios that are associated with sets of heuristics and applying the heuristics of the particular scenario to the image. Instead of relying on a nominal frame rate, video timing quality may be determined by comparing the capture time interval between successive video frames to the presentation time interval of the same video frames. | 12-04-2014 |
20150009338 | VOLUME DIMENSIONING SYSTEM CALIBRATION SYSTEMS AND METHODS - Various corporate, industry, and regulatory guidelines, best practices and standards are used in establishing acceptable levels of accuracy for volume dimensioning systems used in commerce. A volume dimensioning system can determine at least one distortion value that is indicative of an amount of distortion present in the system and responsive to the amount of distortion, autonomously after or adjust the units of accuracy of information reported by the system. Such alteration or adjustment of units of accuracy may be performed based on an assessment of the distortion relative to a number of distortion thresholds. Responsive to the assessment, the volume dimensioning system can adjust a unit of accuracy in a representation of volume dimensioning related information. | 01-08-2015 |
20150062349 | SYSTEMS AND METHODS FOR COLOR CORRECTION OF IMAGES CAPTURED USING A MOBILE COMPUTING DEVICE - A computer-implemented method for color correcting images captured using a mobile computing device is described. A wavelength of light is emitted from a display of a mobile computing device. An image of the emitted wavelength of light is captured using a camera on the mobile computing device. The image of the wavelength of light emitted from the display of the mobile computing device that is captured using the camera on the mobile computing device is analyzed. At least one image captured using the camera on the mobile computing device is modified based on the analysis of the image of the wavelength of light emitted from the display of the mobile computing device. | 03-05-2015 |
20150077570 | TEST CIRCUIT FOR TESTING SIGNAL RECEIVING UNIT, IMAGE PICKUP APPARATUS, METHOD OF TESTING SIGNAL RECEIVING UNIT, AND METHOD OF TESTING IMAGE PICKUP APPARATUS - It is disclosed that, as an embodiment, a test circuit includes a test signal supply unit configured to supply a test signal via a signal line to signal receiving units provided in a plurality of columns, wherein the test signal supply unit is a voltage buffer or a current buffer, and the test circuit has a plurality of test signal supply units and a plurality of signal lines, and wherein at least one test signal supply unit is electrically connected to one signal line different from a signal line to which another test signal supply unit is electrically connected. | 03-19-2015 |
20150085140 | IMAGING APPARATUS - An imaging apparatus includes an imaging unit that is provided with an image pickup device and a fixed pattern outputting section that outputs a fixed pattern set in advance and includes a control unit and a path. The control unit is electrically connected to the imaging unit and receives an image acquired by the image pickup device and a fixed pattern outputted from the fixed pattern outputting means. The path electrically connects the imaging unit and the control unit, and electrically transmits an image and a fixed pattern from the imaging unit to the control unit. The control unit controls, depending on the image, an application which requires the image as one of inputs to the application. Further, the control unit compares a specific pattern prepared in advance according to the fixed pattern, with the fixed pattern, to determine the occurrence of an anomaly in the electrical connection of the path. | 03-26-2015 |
20150097968 | INTEGRATED CALIBRATION CRADLE - Various examples related to calibration of a scanning device are disclosed. In one example, among others, a calibration cradle includes a calibration pattern positioned within the calibration cradle and recesses to support a scanning device in a fixed position relative to the calibration pattern. In another example, a method includes positioning a scanning device in a calibration cradle, obtaining an image of a calibration pattern with a tracking sensor of the scanning device, determining an estimated pose of the scanning device, and determining an error associated with the calibration pattern using the estimated pose. In another example, a method includes capturing an image of a cone mirror a probe of a scanning device, determining a centroid of the cone mirror image, and determining an error associated with the cone mirror using the centroid. | 04-09-2015 |
20150109458 | METHOD OF REGISTRATING A CAMERA OF A SURGICAL NAVIGATION SYSTEM FOR AN AUGMENTED REALITY - A method of registering a camera of a surgical navigation system for an augmented reality which realizes an augmented reality with lowered error range is disclosed. The method of registering the camera of the surgical navigation system for the augmented reality enables single person to do the work by calculating and adjusting the coordinate of the optical center of the camera by moving the optical tracker, the camera, or the pattern board with a second marker attached on the pattern board, not manually attached on the pattern board. And, there is an effect of improving accuracy and safety of a surgery by realizing an augmented reality without generating an accumulated error by the second marker, since the spatial coordinate of the second marker attached on the pattern board maintains uniform. | 04-23-2015 |
20150304648 | Ensuring Imaging Subsystem Integrity in Camera Based Safety Systems - A method for testing an imaging subsystem of a system-on-a-chip (SOC) is provided that includes executing imaging subsystem test software instructions periodically on a processor of the SOC, receiving reference image data in the imaging subsystem responsive to the executing of the test software instructions, performing image signal processing on the reference image data by the imaging subsystem to generate processed reference image data, and using the processed reference image data by the test software instructions to verify whether or not the imaging subsystem is operating correctly. | 10-22-2015 |
20150312564 | METHOD OF MISALIGNMENT CORRECTION AND DIAGNOSTIC FUNCTION FOR LANE SENSING SENSOR - A method of diagnosing a state of health of a vision-based lane sensing system. A first misalignment factor is calculated as a function of a vehicle lateral offset and a vehicle heading. A second misalignment factor is calculated as a function of a vehicle speed, an estimated curvature of an expected path of travel, a lane curvature, and the vehicle heading. Histograms are generated for the first and second misalignment factors. A probability of a state of health is determined. A determination is made whether the probability of the state of health is within a predetermined threshold. An angle misalignment of the vision system is estimated. The angle misalignment of the vision system is corrected in response to the determination that the probability of the state of health is within the predetermined threshold; otherwise a warning of a faulty lane sensing system is actuated. | 10-29-2015 |
20150334385 | VEHICLE-MOUNTED ENVIRONMENT RECOGNITION DEVICE - A vehicle-mounted environment recognition device includes an imaging unit that acquires an image taken by an imaging device; an image self-diagnosis unit that diagnoses contamination of a lens of the imaging device with respect to the image acquired by the imaging unit; an application execution unit that executes an application selected from a predetermined application group; and a fail determination unit that determines, on the basis of a diagnosis result from the image self-diagnosis unit, whether the lens contamination state is in an endurance range of the application and, if within the endurance range, sets the operation of the application executed by the application execution unit to a suppression mode. If outside the endurance range, contamination removal control is implemented, or a fail determination is made for the application. Contamination removal and fail determination can be implemented utilizing parameter adjustment and hardware, or an image-based self-diagnosis can be conducted. | 11-19-2015 |
20150355225 | Method for calibrating a rotation rate sensor, and electrical device - In a method for calibrating a rotation rate sensor which is part of an electrical device also including an image recorder, an image processor, and a calibration unit, the image recorder generates in a first method step a first image data signal as a function of a first image recording and generates a second image data signal as a function of a second image recording; the rotation rate sensor generates a rotation rate data signal including rotation rate data with regard to a time interval between the first and the second image recording; the image processor generates an orientation change signal in a second method step as a function of the first and second image data signals; and the rotation rate sensor is calibrated by the calibration unit in a fourth method step as a function of the orientation change signal and the rotation rate data signal. | 12-10-2015 |
20150363931 | PHOTOMETRIC AND RADIOMETRIC CALIBRATION USING OPTICAL FEEDBACK - Certain examples provide photometric or radiometric calibration using optical feedback. A disclosed example includes dithering between a first display pixel value and a second display pixel value to create a light source from a display. The disclosed example includes capturing the light source using a camera via a plurality of photographs taken by the camera. Each photograph includes a plurality of camera pixels. The disclosed example includes determining a camera response by measuring plurality of camera quantization levels associated with the plurality of camera pixels based on the first display pixel value and the second display pixel value. The disclosed example also includes determining a display response based on the plurality of camera quantization levels. The display response includes a plurality of luminance output values of the display. | 12-17-2015 |
20150365661 | IMAGE CAPTURING APPARATUS, CALIBRATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - An image capturing apparatus according to an aspect of the present invention includes an image capturing unit, a display unit that displays an imaged picture imaged by the image capturing unit and a guide linearly shaped along a sagittal direction or a tangential direction in the imaged picture, the guide assisting imaging of a calibration image used for calibration in a point image restoration process, and a parameter calculation unit that calculates a parameter for the point image restoration process on the basis of the calibration image imaged by the image capturing unit with assistance from the guide. | 12-17-2015 |
20160029017 | CALIBRATION OF LIGHT-FIELD CAMERA GEOMETRY VIA ROBUST FITTING - Microlens positions for a light-field capture device may be calibrated. A calibration light-field image may be captured, with a microlens portion corresponding to each microlens of the light-field capture device. Interstitial spaces between the microlens portions may be identified and used to locate one or more center locations of the microlens portions. The center locations may be used to generate a model that indicates the microlens positions. Additionally or alternatively, the calibration light field image may be used to select one or more contour samples from among multiple contour samples of the microlens portions. The contour sample may be fitted to a circle centered at a center location of a microlens portion to identify the center location, which may then be used to generate a model that indicates the microlens positions. Multiple iterations may be used to enhance the accuracy of the models. | 01-28-2016 |
20160037023 | MULTI-CAMERA IMAGING SYSTEM, AND COMPENSATION METHOD FOR IMAGE RECONSTRUCTION - The disclosure relates to a multi-camera imaging system, and a compensation method for image reconstruction. The main components of the multi-camera imaging system are an image capturing module having a multi-lens module and a multi-sensor module, and a distance adjustment unit automatically adjusting the distance between the multi-lens and multi-sensor modules. Note that the distance adjustment unit conducts compensation performed on the change of the system's focal length caused by temperature in the system. The multi-camera imaging system further includes a position-sensing module which is used to sense a displacement or change of the distance made by the distance adjustment unit. A set of image reconstruction parameters corresponding to the displacement or the change of distance is then provided. | 02-04-2016 |
20160044307 | METHOD AND DEVICE FOR TESTING AN IMAGE SENSOR AND MOTOR VEHICLE - In a method for testing an image sensor having (i) regular pixels and test pixels, of which each is interconnected with one of two predefined voltage values, and (ii) a signal processing unit for providing digital signal values for output voltages of the pixels and test pixels, the following steps are performed: receiving digital signal values of the test pixels; and using the signal values of at least one proper or improper subset of the test pixels for testing the image sensor, all test pixels of the subset being interconnected with a first of the two voltage values. Using the test pixels for testing allows testing during ongoing operation, i.e., during reception of regular image signals. | 02-11-2016 |
20160163051 | System and Methods for Calibration of an Array Camera - Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the detecting of defects in the imaging components of the array camera and determining whether the detected defects may be tolerated by image processing algorithms. The calibration process also determines translation information between imaging components in the array camera for use in merging the image data from the various imaging components during image processing. Furthermore, the calibration process may include a process to improve photometric uniformity in the imaging components. | 06-09-2016 |
20160188828 | IMAGING SYSTEM OPERATIONAL PROPERTY MONITORING - This invention relates to an imaging system and more particularly to imaging system operational property monitoring and describes an approach that makes key parameters available remotely from a collection of imaging systems for trending, ranking, analysis and further service telemetry. A method includes obtaining a set of operational properties of an imaging system. The method further includes identifying an operational property of the set of operational properties that intermittently falls outside of a predetermined operational range and does not require immediate service of the imaging system. The method further includes generating a trend for the identified operational property. The method further includes comparing the generated trend with at least one reference trend. The method further includes determining the imaging system should be serviced based on the comparison. The method further includes generating a service notification signal in response to determining the imaging system should be serviced, where the service notification signal invokes service of the imaging system. | 06-30-2016 |
20180027222 | IMAGE PICKUP APPARATUS, INFORMATION PROCESSING SYSTEM, MAT, AND IMAGE GENERATION METHOD | 01-25-2018 |