Class / Patent application number | Description | Number of patent applications / Date published |
348708000 | Color television signal processing | 37 |
20080198270 | Apparatus and methods for image decoding - A partially-built image stored in a buffer (such as for output to a display device) is combined by an image decoder with an encoded image update. The image is in a different format than the encoded image update (such as by being in a spatial domain, whereas the encoded image update is in a frequency domain). The image decoder operates, at least in part, by encoding the image to attain a same format as the encoded image update, combining the encoded image and the encoded image update, and decoding the result for storage in the buffer as an updated version of the image. The encoded image update is part of a progressive encoding. The encoding and/or the decoding are optionally lossy. After the image reaches a predetermined quality threshold, such as a perceptually lossless quality threshold, residual encoding/decoding techniques are optionally used for image updates. | 08-21-2008 |
20080266461 | VIDEO PROCESSING CIRCUIT WITH MULTIPLE-INTERFACE - A video processing circuit with multiple-interface has a multiple-interface device, a timing controller, and a register. The timing controller is capable of sequencing and transmitting a signal of a low voltage differential signal, a reduced swing differential signal type or a transistor-transistor logic signal type to the multiple-interface device. The register sets the multiple-interface device to be adapted to output the signals of the types to a source driver. | 10-30-2008 |
20090033801 | FLICKER-FREE ADAPTIVE THRESHOLDING FOR AMBIENT LIGHT DERIVED FROM VIDEO CONTENT MAPPED THROUGH UNRENDERED COLOR SPACE - Flicker free operation of ambient light sources that emulate video content during low luminance conditions, where the ambient light source is output thresholded so that an on/off change of state of the ambient light source can be initiated after an intensity variable passes one or two thresholds. Output thresholding is used when extracting and processing video content encoded in a rendered color space, which can be decoded into frames tapped by an interframe interpolation process using only color information from selected frames, such as extracting average or other color information from an selected screen regions. Negative gamma correction helps prevent garish or inappropriate chromaticities and lumina | 02-05-2009 |
20090079877 | Reception apparatus and method of controlling image output by reception apparatus - Disclosed herein is a reception apparatus including: a signal reception section configured to receive a video signal transmitted via a transmission path; an image display section configured to process the video signal to display an image; a timing information acquisition section configured to acquire timing information in connection with reception of the video signal, the timing information concerning timing that affects the image displayed by the image display section; a reference time length adjustment section configured to adjust a reference time length based on the timing information, the reference time length being used as a reference for a length of a time period from the reception of the video signal to start of image display; and a display control section configured to control timing at which the image display is started, based on the reference time length adjusted by the reference time length adjustment section. | 03-26-2009 |
20090109344 | Systems and Methods for Determining and Communicating Correction Information for Video Images - A method and system for determining correction information for the universal display of an original video sequence on a plurality of displays includes correcting an original video sequence using a first display, storing correction information related to the correction of the original video sequence using the first display, correcting the original video sequence using a different display, and determining and storing the differences between the correction information related to the correction of the original video sequence using the first display and using a particular, different display. Subsequently and prior to the display of the original video sequence, the original video sequence is corrected using a combination of the stored correction information related to the correction of the original video sequence using the first display and the respective determined differences, if any, related to a particular, different display on which the original video sequence is now to be displayed. | 04-30-2009 |
20090122197 | METHOD AND APPARATUS FOR AUTO-GENERATION OF HORIZONTAL SYNCHRONIZATION OF AN ANALOG SIGNAL TO A DIGITAL DISPLAY - A method, apparatus, and system for determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is described. A number of initialization values are set where at least one of the initialization values is a current horizontal resolution and then a difference value for each immediately adjacent ones of the pixels is determined. Next, an edge flag value based upon the difference value is stored in at least one of a number of accumulators such that when at least one of the accumulators has a stored edge flag value that is substantially greater than those stored edge flag values in the other accumulators, then the horizontal resolution is set to the current resolution. | 05-14-2009 |
20090135303 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM - A general moving image includes a plurality of objects in a frame image. At the time of playback, the temporal visual characteristic is taken into consideration uniformly in the overall frame image. It is therefore impossible to perform playback while particularly considering an object of interest. In this invention, when playing back a moving image including a plurality of time-divided frame images, the object adaptation time of each object image is acquired first in the frame image of interest of the plurality of frame images. An adaptation weight is calculated based on the acquired object adaptation time, and a low-pass image reflecting the adaptation weight is generated for each object image. Color adaptation conversion using the low-pass image makes it possible to perform, for the frame image of interest, color conversion based on the adaptation time of each object image and perform color conversion particularly considering an object of interest. | 05-28-2009 |
20090153745 | MULTI-VIEW CAMERA COLOR CALIBRATION METHOD USING COLOR CHECKER CHART - A multi-view camera color calibration method using a color checker chart, includes measuring a brightness range of photographic data being input from multiple cameras; photographing the color checker chart for each camera and adjusting a brightness value of the chart to be within the brightness range of an input image of each camera; correcting brightness of each camera by using a gray patch of the checker chart; modeling a relationship between a color value of the checker chart obtained by each camera and a standard color value provided by the color checker chart; and correcting differences in color as a result of the modeling, to calibrate colors among the multiple cameras. Therefore, the three-dimensional information of a moving object for photography which cannot be photographed by moving only one camera is capable of being restored. | 06-18-2009 |
20100134693 | Method of Processing Moving Picture and Apparatus Thereof - A method of processing moving picture and an apparatus thereof are disclosed. A method of processing a moving picture comprising: calculating a color distribution vector for each of plural sub-frames which are generated by dividing a frame of the moving picture; generating a first order differential of the color distribution vector based on the color distribution vector; generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector, is provided. The moving picture processing method can provide an efficient mean to determine commonality between moving pictures by extracting a feature from a frame of the moving pictures. | 06-03-2010 |
20100134694 | COLOR GAMUT EXPANSION METHOD AND DISPLAY DEVICE - A color gamut expansion method and a display device where the color gamut expansion method is applied are provided, realizing appropriate color reproduction compared with the prior. The color gamut expansion method includes the steps of: acquiring a subjective evaluation result signal inputted through user operation; and adjusting magnitude of chroma enhancement and magnitude of brightness contrast enhancement, of an input video signal, independently from each other, based on the subjective evaluation result signal, thereby performing a signal processing to expand a color gamut of the input video signal. | 06-03-2010 |
20100188585 | IMAGE DISPLAY SYSTEM, IMAGE DISPLAY APPARATUS, AND IMAGE DISPLAY METHOD - An image display system in which an image display apparatus displays an image based on an image signal supplied from an image signal supply apparatus, wherein the image display apparatus includes: an image display unit displaying the image based on the image signal; an input source switching unit switching an input source of the image signal corresponding to the image displayed by the image display unit; a communication setup unit setting up a communication path with the image signal supply apparatus; a switching controller controlling the input source switching unit to switch the input source to the image signal supply apparatus in response to the notification that the communication setup unit sets up the communication path; and an image receiver receiving the image signal supplied from the image signal supply apparatus, and wherein the image signal supply apparatus includes an image transmitter transmitting the image signal to the image display apparatus via the communication path after the switching controller switches the input source. | 07-29-2010 |
20100194993 | REPRODUCING APPARATUS CAPABLE OF REPRODUCING PICTURE DATA - A reproducing apparatus includes a graphics processing unit that outputs graphics data of an RGB color space, a video decoder that outputs video data of a YUV color space, a conversion unit that converts a color space of the graphics data from the RGB color space to the YUV color space, a blending process unit that executes a blending process in which the graphics data that is converted to the YUV color space and the video data of the YUV color space are blended on the YUV color space, and a picture data output unit that outputs picture data, which is obtained by the blending process, to a display apparatus. | 08-05-2010 |
20100245675 | METHOD AND SYSTEM FOR VIDEO PARAMETER ANALYSIS AND TRANSMISSION - A system for analyzing video signals generated by an imaging modality is disclosed. The system includes a video signal input port to which a signal output of the imaging modality being can be connected. Additionally, there is a central processor that includes an analog input module, a signal analysis module, and a data communications module. A plurality of video signal parameters may be measurable from the video signal by the signal analysis module. The system also includes a data output port that is linked to the data communications module of the central processor, which is connectable to an external device for transferring the measure signal parameters thereto. | 09-30-2010 |
20100259689 | VIDEO DISPLAY APPARATUS AND METHOD, AND SIGNAL PROCESSING CIRCUIT AND LIQUID CRYSTAL BACKLIGHT DRIVER TO BE BUILT THEREIN - An overflow suppression technique that is effective for avoiding degradation in image quality is provided. A fundamental waveform and detail is extracted out of an input RGB signal. A suppression gain generation unit | 10-14-2010 |
20110134332 | Camera-Based Color Correction Of Display Devices - A method of generating a display from a plurality of color image display sources such as a projector or a video monitor. The non-linear color response is first determined for each projector/monitor by using a color camera or other sensor to capture a displayed image. Each of the display sources is then linearized using the inverse of the respective non-linear color response. A common reachable gamut is derived in an observed color space for each of the sources. A transform is determined that maps an observed gamut to a target device-specific color space for each of the display sources. The respective transform is then applied to color values input to each of the display sources to make more similar the observed color response of each of the displays. | 06-09-2011 |
20110149167 | Full Visible Gamut Color Video Display - Embodiments of the invention use one or more tunable lasers to produce colors for display. The resultant displays may use one or more tunable lasers in conjunction with one or more static lasers, or in conjunction with conventional static color-producing technology. In such systems, colors from input video are determined, then Look Up Tables or other methods may be used to convert the input colors into signals used to drive the fixed and tunable lasers. These color-producing elements are then projected on a screen or otherwise used within a display for viewing. The resultant display has the capability of producing every or nearly every possible color discernable by the human eye. | 06-23-2011 |
20110249190 | SYSTEMS AND METHODS FOR ACCURATE USER FOREGROUND VIDEO EXTRACTION - A color image and a depth image of a live video are received. Each of the color image and the depth image are processed to identify a foreground, background, and an unknown region band of the live video. The unknown region band may comprise pixels between the foreground and the background. Further processing is performed to segment the pixels of the unknown region band between the foreground and the background. As such, processing is performed on the unknown region band in order to provide an improved user foreground video. | 10-13-2011 |
20120206656 | ESTABLISHING CLOCK SPEED FOR LENGTHY OR NON-COMPLIANT HDMI CABLES - A method whereby the frequency of the clock of an internal bus of a sink of High Definition Multimedia Interface (HDMI) data is reduced, and possibly deep color mode of a sink deactivated, in response to an inability of a source of HDMI data to read extended display identification data (EDID) and/or effect High Definition Content Protection (HDCP) authentication with the sink. | 08-16-2012 |
20120206657 | Reproducible Dither-noise Injection - A display pipe unit for processing pixels of video and/or image frames may be injected with dither-noise during processing of the pixels. A random noise generator implemented using Linear Feedback Shift Registers (LFSRs) produces pseudo-random numbers that are injected into the display pipe as dither-noise. Typically, such LFSRs shift freely during operation and the values of the LFSRs are used as needed. By shifting the LFSRs when the values are used to inject noise into newly received data, and not shifting the LFSRs when no new data is received, variations in the delays of receiving the data do not affect the pattern of noise applied to the frames. Therefore, dither-noise can be deterministically injected into the display pipe during testing/debug operation. By updating the LFSRs when new pixel data is available from the host interface instead of updating the LFSRs every cycle, the same dither-noise can be injected for the same received data. | 08-16-2012 |
20120236205 | COLOR SPACE DETERMINATION DEVICES AND DISPLAY DEVICES AND SYSTEMS INCLUDING THE SAME - A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data. | 09-20-2012 |
20130088645 | Method of Processing Moving Picture and Apparatus Thereof - A method of processing moving picture and an apparatus thereof are disclosed. A method of processing a moving picture comprising: calculating a color distribution vector for each of plural sub-frames which are generated by dividing a frame of the moving picture; generating a first order differential of the color distribution vector based on the color distribution vector; generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector, is provided. The moving picture processing method can provide an efficient mean to determine commonality between moving pictures by extracting a feature from a frame of the moving pictures. | 04-11-2013 |
20130114000 | Systems, Apparatus and Methods for Mapping Between Video Ranges of Image Data and Display - Systems, apparatus and methods are provided to map a video range of image data to the video range of a display. Embodiments apply a weighted combination of values in input image data streams to generate image data having a range which matches the display capabilities. The weighted combination may be determined based on relative capabilities of the display and input image data. The video range of the image data and display may be a range of colours (gamut) and/or luminance (dynamic range). | 05-09-2013 |
20130141647 | Metadata for Use in Color Grading - Methods and systems for color grading video content are presented. A component (e.g. a frame, a shot and/or a scene) of the video content is designated to be a master component and one or more other components of the video content are designated to be slave components, each slave component associated with the master component. A master component color grading operation is performed to the master component. For each one of the slave components, the master component color grading operation is performed to the slave component and a slave color grading operation that is specific to the one of the slave components is also performed. Metadata, which form part of the video content, are created to provide indicators on to whether components of the video are designated as master or slave components. | 06-06-2013 |
20130148029 | Extending Image Dynamic Range - Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range. | 06-13-2013 |
20130155330 | Color Grading Apparatus and Methods - A method for color grading input video data for display on a target display comprises obtaining target display metadata indicative of a capability of the target display, obtaining input video data metadata indicative of image characteristics of the input video data, automatically determining initial values for parameters of a parameterized sigmoidal transfer function, at least one of the initial values based at least in part on at least one of the target display metadata and the input video data metadata and mapping the input video data to color-graded video data according to the parameterized transfer function specified using the initial values | 06-20-2013 |
20130258203 | Method and Apparatus for Managing Display Limitations in Color Grading and Content Approval - Methods and apparatus are provided for ensuring consistency in the appearance of video data displayed on displays having different capabilities than a target display. Some embodiments comprising modifying at least one pixel of input video data such that the modified pixel represents the appearance of the at least one pixel when displayed by a target display. In some embodiments, modifying the at least one pixel comprises replacing an original pixel value of the at least one pixel with a replacement pixel value representing a modeled display of the original pixel value by the target display. | 10-03-2013 |
20140022460 | Quality Assessment for Images that Have Extended Dynamic Ranges or Wide Color Gamuts - A first video signal is accessed, and represented in a first color space with a first color gamut, related to a first dynamic range. A second video signal is accessed, and represented in a second color space of a second color gamut, related to a second dynamic range. The first accessed video signal is converted to a video signal represented in the second color space. At least two color-related components of the converted video signal are mapped over the second dynamic range. The mapped video signal and the second accessed video signal are processed. Based on the processing, a difference is measured between the processed first and second video signals. A visual quality characteristic relates to a magnitude of the measured difference between the processed first and second video signals. The visual quality characteristic is assessed based, at least in part, on the measurement of the difference. | 01-23-2014 |
20140055679 | ELECTRONIC DEVICE AND METHOD FOR CORRECTING VIDEO GRAPHICS ARRAY SIGNALS - In a method for correcting video graphics array (VGA) signals using an electronic device, a VGA signal is received from a VGA card, and parsed to obtain a red-green-blue (RGB) analog signal. The RGB analog signal is converted into an RGB digital signal, the RGB digital signal comprising an R voltage, a G voltage, and a B voltage. When the RGB digital signal is not in accordance with predetermined standard values, the method corrects the RGB digital signal, and outputs the corrected RGB digital signal. | 02-27-2014 |
20150077639 | COLOR VIDEO PROCESSING SYSTEM AND METHOD, AND CORRESPONDING COMPUTER PROGRAM - A color video processing method is disclosed that comprises:
| 03-19-2015 |
20150304655 | TIMESTAMP IN PERFORMANCE BENCHMARK - A method is provided for a computer to measure performance. The method includes capturing frames of at least a portion of a video on the computer and detecting timestamps on the captured frames, and determining a frame rate of the video playback based on the timestamps. Each timestamp includes data elements of first and second colors that are spaced apart from each other and set against a background of a third color so adjacent data elements are separated by areas of the third color. | 10-22-2015 |
20160105695 | Transmitting Display Management Metadata Over HDMI - In an embodiment, a media source combines reference code values and mapping function parameters for mapping functions into video frames originally designated to carry pixel values. The video frames are delivered to a downstream device such as a media sink in an encoded video signal. The media sink extracts the mapping function parameters for the mapping functions from the encoded video signal and applies the mapping functions as a part of display management operations to map the reference code values to the mapped pixel values appropriate for the media sink. The mapped pixel values can be used to render images as represented by the reference code values. | 04-14-2016 |
20160134853 | EXTENDING IMAGE DYNAMIC RANGE - Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range. | 05-12-2016 |
348712000 | Luminance channel circuitry | 4 |
20080284916 | SIGNAL PROCESSING METHOD AND APPARATUS, AND IMAGE SENSING APPARATUS - At least two high-frequency signals are generated using luminance signals of at least two color components contained in a video signal, and a high-frequency signal for edge emphasizing processing is generated from the at least two generated high-frequency signals based upon the size relationship between the at least two high-frequency signals. Edge emphasizing processing is applied to the luminance signals, which are obtained from the video signal, using the high-frequency signal for edge emphasizing processing thus generated. | 11-20-2008 |
20090135304 | DISPLAY DEVICE, IMAGE SIGNAL PROCESSING METHOD, AND PROGRAM - There is provided a display device equipped with a display unit, the display device including a receiving part for receiving a difference signal of a plurality of channels including an image signal and content identification information inserted in a blanking period and outputting the image signal and the content identification information; a light emission amount regulation part for setting a reference duty according to image information of the image signal; an adjustment part for adjusting so that an actual duty is within a predetermined range based on the reference duty and an adjustment signal and adjusting a gain of the image signal so that a light emission amount defined by the actual duty and the gain of the image signal becomes the same as the light emission amount defined by the reference duty; and an adjustment signal generation part for generating the adjustment signal based on the content identification information. | 05-28-2009 |
20130176498 | DISPLAY DEVICE - Provided is a display device compatible with RGBY, RGBW, and other multiple primary color displays, wherein a desired luminance ratio of primary colors to white can be obtained. The display device comprises: a display panel that includes sub-pixels composed of 4 or more primary colors; and a signal adjustment portion that adjusts image signals composed of luminance signals and color difference signals. The signal adjustment portion comprises: a luminance gamma adjustment portion; a color gain adjustment portion that increases the color gain of color difference signals, for image signals for which the luminance levels of luminance signals has been reduced; and a CMS portion that adjusts the gain for each color component such that the luminance ratio of primary colors to white becomes closer to a value that is determined in a predetermined image signal format for image signals in which the color difference signal gain has been increased. | 07-11-2013 |
20140267923 | SYSTEM AND METHOD OF DETECTING STROBE USING TEMPORAL WINDOW - A video processing device is provided that includes a buffer, a luminance component, a maximum threshold component, a minimum threshold component and a flagging component. The buffer can store frame image data for a plurality of video frames. The luminance component can generate a first luminance value corresponding to a first frame image data and can generate a second luminance value corresponding to a second frame image data. The maximum threshold component can generate a maximum indicator signal when the difference between the second luminance value and the first luminance value is greater than a maximum threshold. The minimum threshold component can generate a minimum indicator signal when the difference between the second luminance value and the first luminance value is less than a minimum threshold. The flagging component can generate a flagged signal based on the maximum indicator signal and the minimum indicator signal. | 09-18-2014 |
348713000 | Chrominance channel circuitry | 1 |
20150077640 | DISPLAY DEVICE AND DISPLAY METHOD - To optimize combinations of values of four primary colors in a display device supporting four-primary-color display, with consideration given to display performances such as the power consumption in a light-emitting display device and the viewing angle characteristics in the non-light-emitting display device. The display device of the present invention displays video indicated by an input video signal using pixels composed of four primary colors and each having at least one sub-pixel for one primary color. When representing pixel colors of pixel signals in the input video signal, at least one pixel color which has a lightness less than a predetermined lightness determined depending on a color gamut representable by the display device and which is in areas except on a boundary of the color gamut is represented using only three primary colors among the four primary colors. For example, if the four primary colors are red, green, blue, and yellow, the pixel colors are represented using either a set of green, blue, and yellow, or a set of red, blue, and yellow depending on chromaticity indicated by the pixel signals. | 03-19-2015 |