Color Television Signal Processing Patents (Class 348/708)
  • Patent number: 10623711
    Abstract: There is provided an information processing device, an information processing method, a program, and a recording medium that make it possible to set a dynamic range of an image to be reproduced. A Java setting unit sets a dynamic range of an image to be reproduced. A generation unit generates the image to be reproduced in the dynamic range set by the Java setting unit. The present disclosure can be applied, for example, to a reproducing device or the like that reproduces an optical disk that records an AV stream of a main video in a standard dynamic range (SDR) and an AV stream of a main video in a high dynamic range (HDR).
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: April 14, 2020
    Assignee: SONY CORPORATION
    Inventors: Kouichi Uchimura, Ryohei Takahashi
  • Patent number: 10616497
    Abstract: The present disclosure discloses a method and an apparatus for processing image signal conversion. In one example method, an input primary color signal is obtained. The primary color signal is a numeric value of an optical signal corresponding to an image. The primary color signal is proportional to light intensity. Conversion processing is performed on the primary color signal to obtain processed image information. The image information is a numeric expression value of the image. The conversion processing includes at least the following processing: L ? = a ? ( pL ( p - 1 ) ? L + 1 ) m + b , where a, b, m, and p are rational numbers, L is the input primary color signal, and L? is the processed image information.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 7, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meng Li, Hai Chen, Xiaozhen Zheng, Jianhua Zheng
  • Patent number: 10250905
    Abstract: Techniques and tools for conversion operations between modules in a scalable video encoding tool or scalable video decoding tool are described. For example, given reconstructed base layer video in a low resolution format (e.g., 4:2:0 video with 8 bits per sample) an encoding tool and decoding tool adaptively filter the reconstructed base layer video and upsample its sample values to a higher sample depth (e.g., 10 bits per sample). The tools also adaptively scale chroma samples to a higher chroma sampling rate (e.g., 4:2:2). The adaptive filtering and chroma scaling help reduce energy in inter-layer residual video by making the reconstructed base layer video closer to input video, which typically makes compression of the inter-layer residual video more efficient. The encoding tool also remaps sample values of the inter-layer residual video to adjust dynamic range before encoding, and the decoding tool performs inverse remapping after decoding.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 2, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Shijun Sun, Shankar Regunathan, Chengjie Tu, Chih-Lung Lin
  • Patent number: 10244224
    Abstract: Disclosed herein are methods and systems for classifying pixels as foreground using both short-range depth data and long-range depth data. One embodiment takes the form of a process that includes obtaining video data depicting at least a portion of a user. The process also includes obtaining short-range depth data associated with the video data. The process also includes obtaining long-range depth data associated with the video data. The video data, short-range depth data, and long-range depth data may be obtained via a single 3-D video camera. The process also includes classifying pixels of the video data as foreground based at least in part on both the short-range depth data and the long-range depth data. In some embodiments, classifying pixels of the video data as foreground comprises employing an alpha mask. The alpha mask may comprise binary foreground (hard) indicators. The alpha mask may comprise foreground-likelihood (soft) indicators.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: March 26, 2019
    Assignee: Personify, Inc.
    Inventors: Quang Nguyen, Long Dang, Cong Nguyen, Dennis Lin, Simion Venshtain, Minh Do
  • Patent number: 10097786
    Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 9, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kengo Terada, Masayuki Kozuka, Takahiro Nishi, Tadamasa Toma
  • Patent number: 9860502
    Abstract: A method for processing a video is disclosed. The method comprises: obtaining a type and an angle of a template for each picture of the video independently, each template defining a portion of harmonious color values; temporally filtering the types and angles over the video; processing each picture of the video, wherein processing the picture comprises mapping the colors of the picture into the template associated with the picture and defined by the filtered type and the filtered angle.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 2, 2018
    Assignee: Thomson Licensing
    Inventors: Fabrice Urban, Christel Chamaret, Yoann Baveye
  • Patent number: 9769496
    Abstract: Provided is an image encoding device including an encoding unit that encodes a down-sampling image obtained by performing down-sampling of a color difference signal; a decoding unit that decodes the encoded encoding image; and a filter information generation unit that performs up-sampling of a color difference signal of the decoded decoding image, filters the color difference signal of the decoded image by using the up-sampled color difference signal of the decoded image and a luminance signal as reference signals, and acquires filter information related to the filtering.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Naofumi Wada
  • Patent number: 9734558
    Abstract: A method generates a high-resolution (HR) image from a low-resolution (LR) image using regression functions. During a training stage, training HR images are downsampled to LR images. A signature is determined for each LR-HR patch pair based on a local ternary pattern (LTP). The signature is a low dimensional descriptor used as an abstraction of the patch pair features. Then, patch pairs with the same signature are clustered, and a regression function which maps the LR patches to the HR patches is determined. In some cases patch pairs of similar signatures can be combined for learning and a single regression function determined, thus decreasing the number of required regression functions. During actual upscaling, LR patches of an input image are similarly processed to obtain the signatures and from the regression functions. The LR patches can then be upscaled using the training regression functions.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: August 15, 2017
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Fatih Porikli, Ashish Shrivastava, Jay Thornton
  • Patent number: 9277196
    Abstract: A method to encode high dynamic range and wide color gamut video content with a backward compatible base layer. The base layer may be an HDTV or UHDTV program with Rec.709 colorimetry coded with AVC/H.264 or HEVC/H.265. The coding method provides information for properly rendering the content on displays with a wide range of color and brightness capabilities.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 1, 2016
    Assignee: DDD IP Ventures, Ltd.
    Inventors: Kevin John Stec, Peshala Vishvajith Pahalawatta
  • Patent number: 9013503
    Abstract: A device includes converters for converting first image data of an RGB-type into second image data of a YCbCr-type, into third image data of the YCbCr-type, and into fourth image data of the RGB-type, wherein a CbCr-coordinate system has six regions defined by coordinates of a reference color and of six primary colors, and when coordinates of the second image data are located in a region defined by coordinates of the reference color, a first primary color, and a second primary color, the coordinates of the second image data are determined by the coordinates of the reference color, the first primary color, the second primary color, coordinates of a target reference color corresponding to those of the reference color, coordinates of a first target primary color corresponding to those of the first primary color, and coordinates of a second target primary color corresponding to those of the second primary color.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Won-Woo Jang
  • Publication number: 20150077639
    Abstract: A color video processing method is disclosed that comprises: marking out an object from a background in each frame of a sequence of frames of a color video, selecting at least two successive frames, determining a global color template from the backgrounds of the selected frames, for each selected frame and for colors of the marked out object, determining an harmonized color according to the global color template, in such a way that the harmonized color is closer to the global color template than the original color.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Christel CHAMARET, Yoann Baveye, Fabrice Urban
  • Patent number: 8922720
    Abstract: A digital cinema signal is encoded to produce a resulting coded digital cinema bitstream. Decoding the resulting coded digital cinema bitstream allows backwards-compatible delivery of digital cinema content. A digital image or video signal is preprocessed to produce two normalized digital image or video signals of differing quality levels and forward and inverse mapping parameters, which relate the normalized digital image or video signals. The preprocessing can be used prior to the encoding of a digital cinema signal to enable backwards-compatible delivery of digital cinema content.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: December 30, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Walter C. Gish, Christopher J. Vogt
  • Patent number: 8907974
    Abstract: When a single pixel is displayed by four color sub-pixels, or R (red), G (green), B (blue), and G, in a Bayer array, this invention sets the scaling rate of a scaling process to 3/2 times when executing the scaling process on image data having three color components, or R, G, and B, and then executes a color conversion process for finding four color components from the three color components; after this, a decimation process for reducing the number of pixels is carried out. Setting the scaling rate of the scaling process to an integer proportion, moirés caused by the scaling process can be made less noticeable. Note that it is desirable for the scaling rate of the scaling process to be close to ?2 and for the denominator of the integer proportion to be lower.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: December 9, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Hiroshi Yoshimoto
  • Patent number: 8896705
    Abstract: A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: November 25, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chih-Chiang Chiu, Tien-Hua Yu, Wen-Cheng Wu
  • Patent number: 8872981
    Abstract: A digital cinema signal is encoded to produce a resulting coded digital cinema bitstream. Decoding the resulting coded digital cinema bitstream allows backwards-compatible delivery of digital cinema content. A digital image or video signal is preprocessed to produce two normalized digital image or video signals of differing quality levels and forward and inverse mapping parameters, which relate the normalized digital image or video signals. The preprocessing can be used prior to the encoding of a digital cinema signal to enable backwards-compatible delivery of digital cinema content.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 28, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Walter C. Gish, Christopher J. Vogt
  • Patent number: 8866975
    Abstract: Methods and systems for image processing and delivery of higher dynamic range cinema content are disclosed. A digital cinema signal with a lower dynamic range is obtained from a digital cinema signal with a higher dynamic range, for example through mapping. The lower dynamic range digital cinema signal is encoded and decoded at the transmitting end. The decoded lower dynamic range digital cinema signal is normalized to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality. Alternatively, the higher dynamic range digital cinema signal is also encoded and decoded at the transmitting end, to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 21, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Tao Chen, Samir N. Hulyalkar
  • Patent number: 8817039
    Abstract: Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. An image processing device includes: a color gamut conversion processor configured to convert inputted data into RGB data according to a liquid crystal panel; a weighting factor calculator configured to calculate a weighting factor; a first post-color-gamut-conversion data weighting processor configured to perform weighting processing to the RGB data; an inputted data weighting processor configured to perform weighting processing to the inputted data; and an output adder configured to add data after the weighting processing to generate RGB data to be supplied to the liquid crystal panel.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: August 26, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Xiaomang Zhang, Akiko Yoshida
  • Patent number: 8797346
    Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: August 5, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Un Park, Ji-Yun Son, Dong-Ho Yoon
  • Patent number: 8743291
    Abstract: 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.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 3, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Zhen Li, Walter Gish
  • Patent number: 8736758
    Abstract: The present invention enables an image signal processing that can improve color representation of an image signal converted from YCrCb 4:2:2 format to YCrCb 4:2:0 format.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: May 27, 2014
    Assignee: International Business Machines Corporation
    Inventor: Hiroaki Kubo
  • Patent number: 8705135
    Abstract: A display control apparatus according to an embodiment of the present invention includes: a grayscale converting circuit for converting input image data to output image data using a look-up table showing a correspondence between input image data of i bits and output image data of k bits larger than the i bits; and an LUT creating circuit for creating the look-up table based on ? data of 2k bits. The apparatus further includes a ? data storage circuit capable of storing the plural ? data in the LUT creating circuit.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 22, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Hirobumi Furihata, Takashi Nose
  • Patent number: 8698834
    Abstract: A method of displaying an image that includes, in a display having a pixel comprising red, green, blue, and white sub-pixels, receiving data for an image, the image data comprising a first red value corresponding to a brightness of the red sub-pixel, a first green value corresponding to a brightness of the green sub-pixel, a first blue value corresponding to a brightness of the blue sub-pixel, and a first white value corresponding to a brightness of the white sub-pixel. A maximum value is determined from among the first red value, the first green value, and the first blue value, and brightnesses are set corresponding to the values other than the maximum value at quantities generally inversely proportional to the maximum value.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Candice Hellen Brown Elliott
  • Patent number: 8669998
    Abstract: Disclosed are various embodiments for facilitating the selection of colors. An initial set of colors from a color space is rendered in a user interface. A selection of at least one of the initial set of colors is received. A subsequent set of colors from the color space is rendered in the user interface in response to the selection. The subsequent set of colors is related to the selected colors.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 11, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Stephen Charles McBride, Vinayak Ramachandra Hegde
  • Publication number: 20140055679
    Abstract: 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.
    Type: Application
    Filed: April 24, 2013
    Publication date: February 27, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHIH-HUANG WU
  • Publication number: 20140022460
    Abstract: 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.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 23, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Zhen Li, Walter Gish
  • Publication number: 20130286286
    Abstract: Method wherein each image of the content is transformed using at least one pre-transformed image which is associated with a key image of this content wherein, from each key image and an associated pre-transformed image, a color transform is derived, and wherein each color transform is applied to a selection of images of this content which is associated with said key image. Applied to a content broadcast system comprising a server and a receiver to which are connected several types of display devices, the invention advantageously makes it possible to adapt the content to these different types.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 31, 2013
    Applicant: THOMSON LICENSING
    Inventors: Hassane Guermoud, Jurgen Stauder, Laurent Blonde
  • Publication number: 20130258203
    Abstract: 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.
    Type: Application
    Filed: November 16, 2011
    Publication date: October 3, 2013
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Robin Atkins, Chun C. Wan, Anne Webster
  • Patent number: 8542244
    Abstract: System and method for generating multiprimary signals with optimization for bit depth for use in display devices. A preferred embodiment comprises converting an input color signal into an output color signal, wherein the number of colors in the output color signal is less than a number of colors used in a display system, when a weighting of the input color signal is less than a specified threshold, and converting the input color signal into an output color signal, wherein the number of colors in the output color signal is equal to the number of colors used in the display system, when the weighting of the input color signal is greater than the specified threshold. The use of fewer colors eliminates low bit depth colors, allowing increased dither quality in dimmer images.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: September 24, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey Kempf, Rajeev Ramanath
  • Patent number: 8531614
    Abstract: Disclosed is a display device in which high resolution representation is made by generating and displaying display data for each sub-pixel, and in which reduction in image quality is improved. The display device is provided with a display panel in which one pixel is constructed from sub-pixels of at least 4 colors. The display device generates the display data for each sub-pixel in accordance with an input image signal, and displays the display data on the display panel. Within the sub-pixels, high brightness sub-pixels which are the two sub-pixels having the highest brightness are arranged alternately with the other sub-pixels. Also, the area of each high brightness sub-pixel is smaller than that of the other sub-pixels. In a preferred example, the areas of the two sub-pixels having the highest brightness and the areas of the other two sub-pixels have area ratios in the following order: 1.0:1.0:1.6:1.6.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiyuki Fujine, Tomoharu Noutoshi
  • Patent number: 8525933
    Abstract: In an embodiment, a system generates multiple video streams. The system includes a color grading device and an appearance mapping device. The appearance mapping device operates on the data generated by the color grading device, and both the output of the color grading device and the output of the appearance mapping device may be displayed (and edited) simultaneously. In this manner, the efficiency of the editing process is improved.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 3, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Robin Atkins, Anne Webster
  • Publication number: 20130155330
    Abstract: 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
    Type: Application
    Filed: December 18, 2012
    Publication date: June 20, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: DOLBY LABORATORIES LICENSING CORPORATION
  • Publication number: 20130148029
    Abstract: 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.
    Type: Application
    Filed: August 23, 2011
    Publication date: June 13, 2013
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Walter Gish, Zhen Li, Donald Pian, Christopher Vogt, Hyung-Suk Kim, David Ruhoff
  • Publication number: 20130141647
    Abstract: 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.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 6, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Dolby Laboratories Licensing Corporation
  • Patent number: 8456576
    Abstract: A signal processing apparatus includes a lower-level region data detecting section detecting, in luminance data of an input video signal, luminance data corresponding to a value in a set lower-level region, and a data converting section converting a value of the luminance data corresponding to the lower-level region to a set conversion value.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 4, 2013
    Assignee: Sony Corporation
    Inventors: Tsutomu Ichinose, Takashi Sato
  • Publication number: 20130114000
    Abstract: 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).
    Type: Application
    Filed: July 19, 2011
    Publication date: May 9, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Robin Atkins
  • Publication number: 20130100244
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Application
    Filed: August 13, 2012
    Publication date: April 25, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki SUZUKI, Makoto SATO, Masahiko MAWATARI
  • Patent number: 8421816
    Abstract: Disclosed are various embodiments for facilitating the selection of colors. An initial set of colors from a color space is generated in one or more computing devices for rendering in a user interface. Each color from the color space is expressed as a respective tuple of color component values. A selection of one of the initial set of colors is obtained. A subsequent set of colors from the color space is generated for rendering in the user interface. The subsequent set of colors is determined according to values of the N most significant bits of each of the corresponding color component values of the one of the initial set of colors, where N is a predetermined positive integer that is less than a bit length of each color component value.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Amazon Technologies, Inc.
    Inventors: Stephen Charles McBride, Vinayak R. Hegde
  • Patent number: 8421813
    Abstract: A display device includes a light modulating unit configured to modulate light based on a video signal, a light source configured to supply light to the light modulating unit, a detecting unit configured to detect a light amount of the light source, and a control unit configured to perform control for correcting the video signal based on the detected light amount so as to attain a color temperature and brightness that had already been set.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 16, 2013
    Assignee: Sony Corporation
    Inventor: Hiroshi Takase
  • Patent number: 8421924
    Abstract: An image processing method and its associated image processing circuit for processing an image based on a sequential couleur avec memoire (SECAM) system are provided. The image includes a first pixel, a second pixel and a third pixel, which are successively arranged in a same vertical line and are respectively corresponding to a first image signal and a second image signal and a third image signal. The image processing method includes steps of calculating a chroma signal via a vertical filtering process according to the first image signal, the second image signal and the third image signal; calculating a chroma angular frequency via a frequency modulation process according to the chroma signal; and generating a chromaticity according to the chroma angular frequency.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: April 16, 2013
    Assignee: MStar Semiconductor, Inc.
    Inventor: Ming-Hao Liao
  • Publication number: 20130088645
    Abstract: 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.
    Type: Application
    Filed: November 30, 2012
    Publication date: April 11, 2013
    Applicant: ENSWERS CO., LTD.
    Inventor: Enswers Co., Ltd.
  • Publication number: 20130038790
    Abstract: Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.
    Type: Application
    Filed: February 18, 2011
    Publication date: February 14, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Helge Seetzen, Robin Atkins, Neil W. Messmer, Gerwin Damberg
  • Patent number: 8368816
    Abstract: A circuit for detecting motion pictures includes a first-stage motion picture detecting unit and a second-stage motion picture detecting unit. The first-stage motion picture detecting unit analyzes a current image frame and a previous image frame to calculate a first motion value associated with the current image frame. The second-stage motion picture detecting unit receives the first motion value, compares the first motion value against an adjusted motion value, and outputs and stores a larger one as a second motion value. The adjusted motion value is a value derived by adjusting an adjacent previous second motion value.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: February 5, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventor: Teng-Yi Lin
  • Publication number: 20130016193
    Abstract: There is provided a method, a digital image processor and a video display system for digitally processing a video signal. A video signal is digitally processed according to a user profile. The video signal is also digitally processed according to a parameter related to a video display system. A resulting processed video signal is Digitally process a video signal according displayed on the video display system. In an embodiment, the video display system comprises a headset. In the same or other embodiments, the video signal comprises left and right components for stereoscopic according to a device parameter of a display and digital processing is made separately for the left and right components.
    Type: Application
    Filed: March 18, 2011
    Publication date: January 17, 2013
    Inventor: Bertrand Nepveu
  • Publication number: 20120257115
    Abstract: A method and apparatus is provided in which a digital image is transmitted to a presentation projector resource over a wireless transmission medium using a reduced amount of bandwidth by transmitting a subset of the digital image data. The subset of image data may be a delta subset that represents those areas of the image that have changed since the previous transmission. The subset image data may also be a scalable vector graphics representation of the subset of the digital image. A projector discovery logic selects a suitable projector resource based on the order or signal strength of the discovery replies. A wireless image transmission session is established with the selected projector resource during which the projector is unavailable to other devices. The subset image data may be compressed and transmission coordinated with the projector resource so that the data is sent only when it is ready to be received.
    Type: Application
    Filed: June 15, 2012
    Publication date: October 11, 2012
    Applicant: Seiko Epson Corporation
    Inventors: David Elliott Slobodin, Rob Hoeye, Jorell A. Olson, Paul Long, Marques Ronald Girardelli, Joshua Duffy
  • Patent number: 8274525
    Abstract: A color gamut mapping maps an input image signal which has input pixel colors defined by an input luminance and an input chromaticity into a mapped image signal which has corresponding mapped pixel colors defined by a mapped luminance and a mapped chromaticity for a display. The input pixel colors lie within the input color gamut different than the display color gamut. The desired mapped luminance may be retrieved by looking up stored desired luminance values in a look-up table at the mapped chromaticity, or by calculating a relative to white luminance, or a luminance decrease, etc.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: September 25, 2012
    Assignee: TP Vision Holding, B.V.
    Inventor: Erno Hermanus Antonius Langendijk
  • Publication number: 20120236205
    Abstract: 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.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 20, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Hyun Lee, Hong-Mi Choi, Taek-Kyun Shin
  • Publication number: 20120206657
    Abstract: 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.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Inventors: Joseph P. Bratt, Peter F. Holland
  • Publication number: 20120206656
    Abstract: 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.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 16, 2012
    Inventor: Peter Shintani
  • Patent number: 8237731
    Abstract: In accordance with the teachings of the present disclosure, a system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: August 7, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Andrew G. Huibers, Michael T. Davis, Henry W. Neal, James N. Hall
  • Patent number: 8222837
    Abstract: This invention relates to an ambience lighting system for use in conjunction with a display device including an image display region. A central control receives an incoming audio video stream (AVS) and to determines color information at the periphery of the image to be displayed. Light sources are disposed in a pre-fixed arrangement in relation to the periphery of the image display region, and local control units are coupled to open or more light sources selected from the multiple light sources for locally operating the at least one coupled light source. The central control unit is adapted to transmit the determined color information as a stream to each respective local control unit, which use a portion of the received color information to operate the at least one coupled light source, the portion being determined based on the position of the at least one coupled light source within the pre-fixed arrangement.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: July 17, 2012
    Assignee: TP Vision Holding B.V.
    Inventor: Guido Galeazzi