Specified Chrominance Processing Patents (Class 348/453)
  • Patent number: 11128850
    Abstract: There is provided a video processing apparatus, method, and program to enable electro optical transfer processing on video data to be suitably performed. The video processing apparatus includes an acquisition unit configured to acquire video data obtained by performing high dynamic range optical electro transfer on high dynamic range video data, a processing unit configured to perform processing including electro optical transfer on the acquired video data and obtains display video data, and a control unit. In the processing unit, the characteristic of the electro optical transfer is set to a characteristic corresponding to characteristic information of optical electro transfer associated with the acquired video data. The control unit is configured to switch the characteristic of the electro optical transfer in the processing unit in accordance with a selection operation of a user.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: September 21, 2021
    Assignee: SONY CORPORATION
    Inventor: Hidetaka Honji
  • Patent number: 11039045
    Abstract: A video display system includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-depend change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-depend change in the maximum luminance of the video. When the tone mapping process used is switched from the second tone mapping process to the first tone mapping process, the conversion characteristics used is changed gradually or stepwise from the constant conversion characteristics to dynamically changing conversion characteristics over a plurality of frames.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: June 15, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masayuki Kozuka, Masaya Yamamoto, Yoshiichiro Kashiwagi, Toshiroh Nishio, Kazuhiko Kouno, Hiroshi Yahata, Takeshi Hirota, Yoshihiro Mori
  • Patent number: 10827169
    Abstract: A method of video coding in respect of a 4:2:2 chroma subsampling format includes dividing image data into transform units. In a case of a non-square transform unit, the method includes splitting the non-square transform unit into square blocks prior to applying a spatial frequency transform. The method further includes applying a spatial frequency transform to the square blocks to generate corresponding sets of spatial frequency coefficients.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: November 3, 2020
    Assignee: Sony Corporation
    Inventors: James Alexander Gamei, Nicholas Ian Saunders, Karl James Sharman, Paul James Silcock
  • Patent number: 10803342
    Abstract: Systems, devices, media, and methods are presented for segmenting an image of a video stream with a client device, extracting one or more color from the image and modifying the video stream. The systems, devices, and method convert images of the set of images to a coordinate representation, perform a histogram equalization, identifies one or more colors of the coordinate representation based on an area of interest, determines a prevailing color, and applies the prevailing color to pixels of the video stream.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: October 13, 2020
    Assignee: Snap Inc.
    Inventor: Maksim Igorevich Gusarov
  • Patent number: 10735688
    Abstract: An electronic apparatus is provided. The electronic apparatus according to an example embodiment includes a communication interface and a processor configured to provide a video content and dynamic metadata corresponding to each content section of the video content to an external display apparatus through the communication interface, each content section comprising a plurality of frames, wherein the processor is further configured to transmit the dynamic metadata to the external display apparatus on a frame-by-frame basis, and based on a graphic content being activated, provide data to the display apparatus by converting dynamic metadata corresponding to a content section where the graphic content is activated into static metadata during a plurality of frames.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bong-gil Bak, Byoung-jin Choi
  • Patent number: 10728560
    Abstract: A video encoder and decoder system includes a video decoder (220) converting in input HDR images in a luma and chrominance representation to SDR images in a luma and subsampled chrominance representation by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain. An video encoder may perform the opposite operation and convert from SDR to HDR by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 28, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Renatus Josephus Van Der Vleuten
  • Patent number: 10728566
    Abstract: According to an embodiment, a decoding device includes an acquiring unit configured to acquire first format information, encoded data, and first filter information, the first format information indicating a resolution of a color-difference component of the encoded data; a decoding unit configured to decode the encoded data to obtain a decoded image; and a converting unit configured to convert a color-difference format of the decoded image represented by a first color-difference format by using a filter identified by the filter information.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: July 28, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Chujoh, Tomoya Kodama
  • Patent number: 10681306
    Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: June 9, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tadamasa Toma, Kengo Terada, Masayuki Kozuka, Takahiro Nishi
  • Patent number: 10645359
    Abstract: A method for processing a digital image including image elements having a first luminance component. The first luminance component has a first value in a first predetermined interval. The display can render second values of second luminance components included in a second predetermined interval. The method includes: determining information representative of image brightness perceived by an observer, based on the first values of the first luminance component; calculating an expansion exponent as a function of the determined brightness information; transforming the first luminance components into the second luminance components, including calculating an intermediate luminance value by applying the calculated expansion exponent to the first luminance component value, multiplying the intermediate value by a length of the second interval, and obtaining the second value of the second luminance component based on the multiplied intermediate luminance value.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 5, 2020
    Assignee: B<>COM
    Inventors: Cambodge Bist, Remi Cozot, Gerard Madec
  • Patent number: 10616593
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. In some examples, an apparatus includes processing circuitry. The processing circuitry decodes prediction information of a first block from a coded video bitstream. The first block is a non-square block and the prediction information for the first block is indicative of a first intra prediction mode in a first set of intra prediction modes for a square block. Then, the processing circuitry remaps the first intra prediction mode to a second intra prediction mode in a second set of intra prediction modes that is used for the non-square block. The second set of intra prediction modes includes at least the second intra prediction mode that is not in the first set of intra prediction modes. Further, the processing circuitry reconstructs at least one sample of the first block according to the second intra prediction mode.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: April 7, 2020
    Assignee: Tencent America LLC
    Inventors: Liang Zhao, Shan Liu, Xin Zhao, Xiang Li
  • Patent number: 10499006
    Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 3, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tadamasa Toma, Kengo Terada, Masayuki Kozuka, Takahiro Nishi
  • Patent number: 10499007
    Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 3, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tadamasa Toma, Kengo Terada, Masayuki Kozuka, Takahiro Nishi
  • Patent number: 10339410
    Abstract: Systems, devices, media, and methods are presented for segmenting an image of a video stream with a client device, extracting one or more color from the image and modifying the video stream. The systems, devices, and method convert images of the set of images to a coordinate representation, perform a histogram equalization, identifies one or more colors of the coordinate representation based on an area of interest, determines a prevailing color, and applies the prevailing color to pixels of the video stream.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: July 2, 2019
    Assignee: Snap Inc.
    Inventor: Maksim Igorevich Gusarov
  • Patent number: 10284866
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. The processing circuitry in the apparatus decodes prediction information of a first block from a coded video bitstream. The first block is a non-square block and the prediction information for the first block is indicative of a first intra prediction mode in a first set of intra prediction modes for a square block. Then, the processing circuitry determines that the first intra prediction mode is within a subset of disabled intra prediction modes for the non-square block in the first set of intra prediction modes for the square block, remaps the first intra prediction mode to a second intra prediction mode in a second set of intra prediction modes that is used for the non-square block. Further, the processing circuitry reconstructs at least one sample of the first block according to the second intra prediction mode.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 7, 2019
    Assignee: Tencent America LLC
    Inventors: Liang Zhao, Shan Liu, Xin Zhao, Xiang Li
  • Patent number: 10257486
    Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tadamasa Toma, Masayuki Kozuka, Hiroshi Yahata, Takahiro Nishi, Kengo Terada
  • Patent number: 10152657
    Abstract: An image processing device performs: breaking down a drawing command into horizontal line parameters each indicating a drawing parameter on a line-by-line basis; and reading, from a translucent image storage unit configured to store a translucent image including a translucency value indicating a transmission rate of a color value corresponding to pixel for each of a plurality of pixels, the translucency values of pixels corresponding to the horizontal line parameter, and writing color values designated by the horizontal line parameter directly into a color image storage unit configured to store a color image including a color value for each of a plurality of pixels as the color values of the respective pixels corresponding to the horizontal line parameter without reading the color values of the pixels corresponding to the horizontal line parameter from the color image storage unit, when all of the read translucency values indicate transparent.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: December 11, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Patent number: 10147346
    Abstract: A gamma calibration method based on three primary colors is disclosed. The method comprises following steps: performing the gamma calibration onto one of two electro-optic display systems which have three primary colors with different intrinsic wavelengths; correcting the three primary colors of the two electro-optic display system and an output dominant wavelength of a first system of the two electro-optic display systems, resulting in a transition from the output dominant wavelength of the first system to a output dominant wavelength of a second system of the two electro-optic display system, so that the output dominant wavelength of the first system being more and more consistent with the output dominant wavelength of the second system in color space.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 4, 2018
    Inventors: Weikang Ding, Zhanmin Xia
  • Patent number: 10043081
    Abstract: An imaging device for tracking moving objects includes an image output device outputting first and second images that include a moving object to be tracked. A memory stores image data from the image output device. An image processing device includes local storage and performs a block matching processing comprising evaluating a first block in the first image, dividing the second image into multiple regions, storing image data for a divided region in the local storage unit, determining similarity of the first block to blocks in each of the divided regions in turn, and then determining the similarity of the first and second images according to results obtained for each of the divided regions.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 7, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yohei Kojima, Yoshiharu Uetani
  • Patent number: 9801573
    Abstract: A color image sensor captures a reflected image of narrowband light having a wavelength range in which an extinction coefficient varies with a change in an oxygen saturation level of hemoglobin in blood. Thereby a first blue signal, a first green signal, and a first red signal are obtained. The color image sensor captures a reflected image of white light. Thereby a second blue signal, a second green signal, and a second red signal are obtained. Only an oxygen saturation level, out of two or more types of biological functional information including a blood volume and the oxygen saturation level, is obtained based on the first blue signal, the second green signal, and the second red signal. The oxygen saturation level is visualized to produce an oxygen saturation image.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 31, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Takaaki Saito
  • Patent number: 9781440
    Abstract: According to an embodiment, a decoding device includes an acquiring unit configured to acquire first format information, encoded data, and first filter information, the first format information indicating a resolution of a color-difference component of the encoded data; a decoding unit configured to decode the encoded data to obtain a decoded image; and a converting unit configured to convert a color-difference format of the decoded image represented by a first color-difference format by using a filter identified by the filter information.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takeshi Chujoh, Tomoya Kodama
  • Patent number: 9775497
    Abstract: An endoscope apparatus includes: a light source device radiating at least one or more illumination lights having a predetermined wavelength band to a subject; a CCD picking up an image of a return light from the subject based on radiation of the illumination light from the light source device; an image processing section outputting a first image signal of a first wavelength band having a peak wavelength of spectral characteristic, between a wavelength band including a maximum value and a wavelength band at a minimum value with regard to an absorption characteristic of living tissue, after image pickup by the CCD; and an observation monitor performing image display on the basis of the first image signal.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: October 3, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Makoto Igarashi, Tetsuo Nonami, Kenji Taira
  • Patent number: 9532022
    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: Grant
    Filed: March 19, 2015
    Date of Patent: December 27, 2016
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Peter W. Longhurst, Neil W. Messmer, Steve Margerm, Robin Atkins
  • Patent number: 9473726
    Abstract: An ultra high definition display device and a video signal converting method are provided. The ultra high definition display device comprises a first input port configured to receive a first signal; a control module configured to generate a first enabling signal; a first receiver module configured to receive the first signal from the first input port according to the first enabling signal, and generate a second signal by a format conversion, both the first signal and the second signal being full high definition signals; a resolution transformation module configured to transform the second signal in resolution to generate a third signal, the third signal being an ultra high definition signal; and a transmission module configured to convert the third signal into an ultra high definition display signal and output the display signal.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 18, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventors: Xitong Ma, Xiao Zhang, Xinshe Yin
  • Patent number: 9275438
    Abstract: An apparatus comprising one or more processors configured to receive a digital image comprising a current pixel and a plurality of nearby pixels, determine a pixel intensity of the current pixel, wherein the pixel intensity comprises a noise component, and reduce the noise component by applying a bilateral filter as a combination of a domain filter and a range filter on the current pixel, wherein the domain filter is dependent on the pixel intensity and geometric closeness between the current pixel and the nearby pixels, and wherein the range filter is dependent on the pixel intensity and photometric similarity between the current pixel and the nearby pixels.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: March 1, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Bo Wang, Zixiang Xiong, Dongqing Zhang, Hong Heather Yu
  • Publication number: 20150146098
    Abstract: The objective of the present invention is to provide a display device which, when transforming three primary colors of input to four primary colors of output and displaying the same, is capable of performing accurate color reproduction using a simple method. A display device is provided with a color transformation portion (12) which transforms 3 RGB primary colors of an input video image signal into a tri-stimulus value of an XYZ color system, and transforms the transformed tri-stimulus value to 4 primary colors of an output video image signal.
    Type: Application
    Filed: July 16, 2013
    Publication date: May 28, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Takashi Kanda
  • Publication number: 20150124165
    Abstract: A device for multiple-quality level video processing includes a primary tap configured to receive prime-quality video content from a source and to provide the prime-quality video content to a primary path and to a secondary tap. The primary tap may be operable in a prime-quality mode. The secondary tap may be disposed after the primary tap and may be coupled to a number of secondary paths. One or more dithering modules may be disposed after the primary tap. The dithering module(s) may be configured to convert the prime-quality video content provided by the primary tap to lower-bit precision and/or lower pixel-rate video content for use in one or more of the secondary paths.
    Type: Application
    Filed: December 4, 2013
    Publication date: May 7, 2015
    Applicant: BROADCOM CORPORATON
    Inventors: Todd Christopher MENDENHALL, Jason William Herrick, Yao-Hua Tseng
  • Patent number: 8994775
    Abstract: A handheld communication device is used to capture video streams and generate a multiplexed video stream. The handheld communication device has at least two cameras facing in two opposite directions. The handheld communication device receives a first video stream and a second video stream simultaneously from the two cameras. The handheld communication device detects a speech activity of a person captured in the video streams. The speech activity may be detected from direction of sound or lip movement of the person. Based on the detection, the handheld communication device automatically switches between the first video stream and the second video stream to generate a multiplexed video stream. The multiplexed video stream interleaves segments of the first video stream and segments of the second video stream. Other embodiments are also described and claimed.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: March 31, 2015
    Assignee: Apple Inc.
    Inventors: Jae Han Lee, E-Cheng Chang
  • Patent number: 8970786
    Abstract: A system for controlling ambient light effects comprises a receiving device including at least one processor programmed to parse incoming video content to detect at least one portion of the incoming video content and determine at least one ambient light effect to be associated with the portion of the video content. The system further comprises a home automation controller in communication with the processor and at least one lighting device in communication with the receiving device and the home automation controller. The processor of the receiving device is programmed to send a command to the home automation controller specifying the ambient light effect determined by the processor to be associated with the portion of the video content. The lighting device generates the ambient light effect specified in the command when the portion of the video content is displayed to a user.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: March 3, 2015
    Assignee: Sony Corporation
    Inventors: Adam Li, Megan Farrell, Aixin Liu, Djung Nguyen
  • Patent number: 8964118
    Abstract: A display signal processing system, a circuit board, and a liquid crystal display are disclosed. The display signal processing system includes an image processing circuit and a V-by-One circuit capable of selecting a JEIDA mode and a VESA mode. A GPIO of the V-by-One circuit is for selectively inputting a first or a second selection signal such that the V-by-One circuit transforms the converted display signal to be a first LVDS signal under the JEIDA mode or a second LVDS under the VESA mode. The first LVDS or second LVDS signal is output by a signal output. The selection between the VESA mode and the JEIDA may be achieved by a simplified V-by-One circuit. In addition, the display signal processing system retains the advantage of lower cost and simple operations.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Dongguang Wu
  • Patent number: 8958474
    Abstract: A system and method for effectively encoding and decoding a wide-area network based remote presentation scheme makes use of a scalable video codec (SVC) to encode multiple screen data. A RGB frame of each screen is converted into YUV444 which is subsequently converted into two YUV420 frames. The V frame of the YUV444 is divided into four sub-frames. Two of those sub-frames are combined with the Y frame to create the first YUV420 frame. A second YUV420 frame is created by combining the remaining two V sub-frames with the U frame. The two YUV420 frames are encoded separately by using SVC or together by using Multi-View Codec. An SVC decoder receives and decodes two such YUV420 frames. Those decoded YUV420 frames are then used to obtain the YUV444 frame which is subsequently converted in to RGB frame to display the image on a screen.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: February 17, 2015
    Assignee: Virtualinx, Inc.
    Inventor: Krishna Mohan Malladi
  • Publication number: 20150015783
    Abstract: The present invention relates to a method for scaling a first channel, wherein the method comprises computing a low resolution second channel based on a transformation of the second channel with a transformation function used to transform high resolution channel into a low resolution channel; computing a correlation function between the low resolution second channel and the first channel; determining a predicted second channel having the high resolution from the low resolution second channel according to a prediction method; computing an high-pass second channel based on the difference between the second channel and the predicted second channel and based on the correlation function; determining a predicted first channel having the high resolution from the first channel according to the prediction method.
    Type: Application
    Filed: August 18, 2014
    Publication date: January 15, 2015
    Inventors: Christophe Bernard, Vincent Varoquaux, Marc De Vulpillieres
  • Patent number: 8928812
    Abstract: A system for controlling ambient light effects comprises a receiving device including at least one processor programmed to parse incoming video content to detect at least one portion of the incoming video content and determine at least one ambient light effect to be associated with the portion of the video content. The system further comprises a home automation controller in communication with the processor and at least one lighting device in communication with the receiving device and the home automation controller. The processor of the receiving device is programmed to send a command to the home automation controller specifying the ambient light effect determined by the processor to be associated with the portion of the video content. The lighting device generates the ambient light effect specified in the command when the portion of the video content is displayed to a user.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Sony Corporation
    Inventors: Adam Li, Megan Farrell, Aixin Liu, Djung Nguyen
  • Publication number: 20140375881
    Abstract: A method of converting a video file to a Graphics Interchange Format (GIF) image includes converting a plurality of frames of a video file into corresponding frames of a GIF image, creating a first palette table for defining colors in each frame of a first set of consecutive frames of the GIF image, and creating a second palette table for defining colors in each frame of a second set of consecutive frames of the GIF image, wherein the first palette table is not equal to the second palette table and each frame in the first set of consecutive frames is distinct from each frame in the second set of consecutive frames.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 25, 2014
    Inventor: Wei Wan
  • Publication number: 20140375882
    Abstract: A method of creating a video stream is provided. The method includes receiving into non-transitory memory first and second video streams. The first video stream is different from the second video stream. Each video stream includes a series of video images each having a plurality of pixels. Each pixel has a luminance component and two chrominance components. The method includes converting, using a computing processor, the luminance component of a first pixel in a first image of the first video stream into an opacity component. The method also includes combining, using the computing processor, the opacity component of the first pixel and color components of a second pixel into an output pixel. Finally, the method includes outputting an output video stream comprising the output pixel.
    Type: Application
    Filed: August 13, 2014
    Publication date: December 25, 2014
    Applicant: Limited Liability Company "E-Studio"
    Inventor: Dmitrii Igorevich GAIAZOV
  • Patent number: 8917354
    Abstract: A method for detecting motion in video fields of video data, comprises the steps of: calculating texture information for a pixel in the video fields; determining a threshold value as a function of the calculated texture information; calculating a differential value for the pixel; and detecting motion in the video fields as a function of the determined threshold value and the calculated differential value.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 23, 2014
    Assignee: Amlogic Co., Ltd.
    Inventors: Dongjian Wang, Xin Hu, Xuyun Chen
  • Publication number: 20140368732
    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: Application
    Filed: September 3, 2014
    Publication date: December 18, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Walter C. GISH, Christopher J. VOGT
  • Patent number: 8907975
    Abstract: Digital video communication system and method facilitate conservation of communication bandwidth are presented. A present invention method forwards sampled chrominance data to other components in the system. Pixel chrominance values are sampled in accordance with the sampling scheme. The sampled chrominance values (e.g., 422, 420, 411, etc.) are forwarded to another component. For example, a graphics processing unit performs sampling operations and forwards the chrominance sampled information to another component (e.g., a board, a display, etc.). The graphics processing unit can also perform color space conversion before forwarding the chrominance sampled information to the other component. The other component performs up-sampling. For example, a display can perform the up-sampling to generate synthesized full RGB values. The sampled chrominance data can be further compressed (e.g., MPEG, WMV, etc.) before forwarding the sampled chrominance data and before performing the up-sampling.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: December 9, 2014
    Assignee: Nvidia Corporation
    Inventor: William Samuel Herz
  • Patent number: 8902358
    Abstract: A deinterlacing apparatus includes a buffer to receive a plurality of consecutive fields of an interlaced video and a field combination module coupled to the buffer to deinterlace the interlaced video in accordance with cadence of the interlaced video. The deinterlacing apparatus also includes a cadence detection module to detect the cadence by (1) causing each of the fields to be combined with its preceding field into a frame and with its subsequent field into another frame to obtain a plurality of combined frames, (2) determining a comb factor of each of the combined frames to obtain a sequence of comb factors of the combined frames, and (3) determining if the sequence of comb factors of the combined frames follows a pre-determined repeating pattern. A cadence detection method is also described.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: December 2, 2014
    Assignee: Altera Corporation
    Inventors: Jon Michael Harris, Vivek Gowri-Shankar, Boon Hong Oh
  • Patent number: 8891620
    Abstract: There is provided a picture coding device that performs intra prediction coding of a picture signal including a luma signal and a chroma signal in units of blocks and codes information relating to an intra prediction mode. When the intra prediction of a picture signal is made in units of coding blocks, in a case where a chroma format is 4:2:2, in a mode for setting a chroma intra prediction mode in accordance with the luma intra prediction mode, an intra prediction unit sets the chroma intra prediction mode based on the luma intra prediction mode and the chroma format and makes an intra prediction of the chroma signal.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: November 18, 2014
    Assignee: JVC KENWOOD Corporation
    Inventors: Hiroya Nakamura, Shigeru Fukushima
  • Publication number: 20140327822
    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: Application
    Filed: December 6, 2012
    Publication date: November 6, 2014
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Walter C. Gish, Christopher J. Vogt
  • Publication number: 20140327821
    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: Application
    Filed: April 25, 2014
    Publication date: November 6, 2014
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Tao Chen, Samir N. Hulyalkar
  • Publication number: 20140247391
    Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: Sony Corporation
    Inventors: Ko Ishimoto, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Shuichi Haga, Hiroshi Takizuka, Yoshiki Shirochi, Naoya Katoh, Hiroshi Yamashita, Koichi Oura, Yoshihiro Kosugi, Junichi Iwai, Kazuji Uemura, Shigeo Kubota, Hideo Morita
  • Publication number: 20140240458
    Abstract: A first RGB converter is configured to convert a luminance signal and a color difference signal of a first frame signal to a first RGB signal. The first frame signal is a current frame having a first number of bits. A second RGB converter is configured to place at least one lower bit of the first frame signal on the least significant bit side of a second frame signal to form composite data having the first number of bits and to convert the composite data to a second RGB signal. The second frame signal is a previous frame having a second number of bits composed of upper bits of the first number of bits other than at least one lower bit. An overdrive processing unit is configured to correct an amplitude of the first RGB signal corresponding to the difference between the first and second RGB signals.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: JVC KENWOOD CORPORATION
    Inventors: Tomoyuki SHISHIDO, Hideki AIBA
  • Patent number: 8817179
    Abstract: Converting a first format frame to one or more second format frames. In one embodiment, a method includes accessing a first format frame using n coefficients, where n is the total number of coefficients used for the Y, U and V planes of the first format frame. The method further includes mapping the coefficients of the first format frame to coefficients of one or more second format frames. The one or more second format frames have n coefficients across all of the second format frames matching the n coefficients of the first format frame.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: August 26, 2014
    Assignee: Microsoft Corporation
    Inventors: Lihua Zhu, Sridhar Sankuratri, B. Anil Kumar, Nadim Abdo
  • Patent number: 8810727
    Abstract: A method for scaling a first channel of an image. The method comprises computing a low resolution second channel of the image based on a transformation of the second channel with a transformation function used to transform a high resolution channel into a low resolution channel; computing a correlation function between the low resolution second channel and the first channel; determining a predicted second channel having the high resolution from the low resolution second channel according to a prediction method; computing a high-pass second channel based on the difference between the second channel and the predicted second channel and based on the correlation function; and determining a predicted first channel having the high resolution from the first channel according to the prediction method.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: August 19, 2014
    Assignee: Qualcomm Technologies, Inc.
    Inventors: Christophe Bernard, Vincent Varoquaux, Marc De Vulpillieres
  • Publication number: 20140226065
    Abstract: Video conversion technology, in which a first stream of video content is accessed and multiple, different layers are extracted from the first stream of the video content. Each of the multiple, different layers are separately processed to convert the multiple, different layers into modified layers that each have a higher resolution. The modified layers are reassembled into a second stream of the video content that has a higher resolution than the first stream of the video content.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 14, 2014
    Applicant: WARNER BROS. ENTERTAINMENT INC.
    Inventor: Warner Bros. Entertainment Inc.
  • Publication number: 20140218610
    Abstract: According to an embodiment, a decoding device includes an acquiring unit configured to acquire first format information, encoded data, and first filter information, the first format information indicating a resolution of a color-difference component of the encoded data; a decoding unit configured to decode the encoded data to obtain a decoded image; and a converting unit configured to convert a color-difference format of the decoded image represented by a first color-difference format by using a filter identified by the filter information.
    Type: Application
    Filed: April 8, 2014
    Publication date: August 7, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi CHUJOH, Tomoya Kodama
  • Publication number: 20140198251
    Abstract: A splice display includes at least two liquid crystal displays (LCDs) that are mutually spliced, and the LCDs form a spliced frame at a spliced position of the LCD. The splice display further includes an image splitter and at least one organic electroluminescenee display (OLED) panel. A frame of the OLED is transparent, and the OLED covers the spliced frame. The image splitter splits an image signal into a plurality of parts, and transmits the split image signal to the OLED and the LCDs for display.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Chunhuai Li
  • Publication number: 20140192261
    Abstract: Converting a first format frame to one or more second format frames. In one embodiment, a method includes accessing a first format frame using n coefficients, where n is the total number of coefficients used for the Y, U and V planes of the first format frame. The method further includes mapping the coefficients of the first format frame to coefficients of one or more second format frames. The one or more second format frames have n coefficients across all of the second format frames matching the n coefficients of the first format frame.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: Microsoft Corporation
    Inventors: Lihua Zhu, Sridhar Sankuratri, B. Anil Kumar, Nadim Abdo
  • 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