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101.发明授权公开(公告)号：US10200690B2
公开(公告)日：2019-02-05
申请号：US15272172
申请日：2016-09-21
发明人： Joel Sole Rojals , Adarsh Krishnan Ramasubramonian , Dmytro Rusanovskyy , Sungwon Lee , Ye-Kui Wang
IPC分类号： H04N19/124 , H04N19/98 , H04N19/44 , H04N19/18 , H04N19/186 , H04N19/70 , H04N19/46 , H04N19/30 , H04N19/85 , G06F3/14 , G09G5/04 , G06T5/00 , H04N19/126 , G09G3/00 , G09G5/06
摘要： In one example, a device for processing decoded video data a video decoder implemented by one or more hardware-based processing units comprising digital logic circuitry, and a postprocessing unit implemented by one or more hardware-based processing units comprising digital logic circuitry. The video decoder is configured to decode video data of a video bitsream according to a video coding standard, extract HDR postprocessing data from an SEI message of the video bitstream, and provide the decoded video data and the HDR postprocessing data to the postprocessing unit. The postprocessing unit is configured to process the decoded video data using the HDR postprocessing data according to the video coding standard. The device may additionally determine whether the video decoder is compliant with the video coding standard by comparing the processed video data with reference processed video data.
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102.发明授权公开(公告)号：US10129558B2
公开(公告)日：2018-11-13
申请号：US15269497
申请日：2016-09-19
发明人： Adarsh Krishnan Ramasubramonian , Dmytro Rusanovskyy , Joel Sole Rojals , Sungwon Lee , Done Bugdayci Sansli , Marta Karczewicz
IPC分类号： H04N19/66 , H04N19/70 , H04N19/46 , H04N19/80 , H04N19/85 , H04N19/36 , H04N19/44 , H04N19/463 , H04N19/184 , H04N19/117 , H04N19/124 , H04N19/60 , H04N19/186 , H04N19/154 , H04N19/174
摘要： This disclosure relates to processing video data, including processing video data that is represented by an HDR/WCG color representation. In accordance with one or more aspects of the present disclosure, one or more Supplemental Enhancement Information (SEI) Messages may be used to signal syntax elements and or other information that allow a video decoder or video postprocessing device to reverse the dynamic range adjustment (DRA) techniques of this disclosure to reconstruct the original or native color representation of the video data. Dynamic range adjustment (DRA) parameters may be applied to video data in accordance with one or more aspects of this disclosure in order to make better use of an HDR/WCG color representation, and may include the use of global offset values, as well as local scale and offset values for partitions of color component values.
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公开(公告)号：US10015515B2
公开(公告)日：2018-07-03
申请号：US14309730
申请日：2014-06-19
发明人： Liwei Guo , Chao Pang , Woo-Shik Kim , Wei Pu , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N11/02 , H04N19/52 , H04N19/593 , H04N19/82 , H04N19/563 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/513 , H04N19/186 , H04N19/154 , H04N19/523 , H04N19/55
CPC分类号： H04N19/52 , H04N19/105 , H04N19/154 , H04N19/176 , H04N19/186 , H04N19/513 , H04N19/523 , H04N19/55 , H04N19/563 , H04N19/593 , H04N19/70 , H04N19/82
摘要： Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.
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公开(公告)号：US09948949B2
公开(公告)日：2018-04-17
申请号：US14743564
申请日：2015-06-18
IPC分类号： H04N7/12 , H04N19/593 , H04N19/52
CPC分类号： H04N19/593 , H04N19/52
摘要： This disclosure describes techniques for coding video data according to an intra Block Copy (BC) coding mode. A block vector difference that identifies a prediction block may be represented by a plurality of syntax elements, which may be encoded and decoded. This disclosure proposes various techniques whereby a video encoder may conditionally signal syntax elements representing the absolute value and/or sign of the components of the block vector difference. Likewise, a video decoder may be configured to infer the values of the syntax elements representing the absolute value and/or sign of the components of the block vector difference when such syntax elements are not signaled.
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105.发明授权公开(公告)号：US09924175B2
公开(公告)日：2018-03-20
申请号：US14736102
申请日：2015-06-10
发明人： Wei Pu , Joel Sole Rojals , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N19/176 , H04N19/117 , H04N19/82 , H04N19/186
CPC分类号： H04N19/176 , H04N19/117 , H04N19/186 , H04N19/82
摘要： Techniques are described for palette-based video coding. In palette-based coding, a video coder may form a so-called “palette” as a table of colors for representing video data of a given block of video data. Rather than coding actual pixel values or their residuals for the given block, the video coder may code index values for one or more of the pixels. The index values map the pixels to entries in the palette representing the colors of the pixels. Techniques are described for determining the application of deblocking filtering for pixels of palette coded blocks at a video encoder or a video decoder. In addition, techniques are described for determining quantization parameter (QP) values and delta QP values used to quantize escape pixel values of palette coded blocks at the video encoder or the video decoder.
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106.发明申请公开(公告)号：US20180070107A1
公开(公告)日：2018-03-08
申请号：US15693146
申请日：2017-08-31
IPC分类号： H04N19/70 , H04N19/186 , H04N19/156 , H04N19/196
CPC分类号： H04N19/70 , H04N19/103 , H04N19/156 , H04N19/159 , H04N19/186 , H04N19/196
摘要： This disclosure describes techniques for communicating optimal coding parameters between a source device and a sink device. The sink device may receive, in a bitstream, video data and a group of one or more supplemental enhancement information (SEI) messages, wherein each SEI message comprises indications of a set of display capabilities and a set of remapping parameters. The sink device may then, for each SEI message of the group of one or more SEI messages, compare the respective set of display capabilities indicated in the respective SEI message with a target set of display capabilities for the sink device. Responsive to determining that a first set of display capabilities indicated by a first SEI message is compatible with the target set of display capabilities, the sink device may adapt the video data using a respective set of remapping parameters indicated by the first SEI message.
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公开(公告)号：US09906799B2
公开(公告)日：2018-02-27
申请号：US14743898
申请日：2015-06-18
发明人： Feng Zou , Marta Karczewicz , Joel Sole Rojals , Rajan Laxman Joshi , Wei Pu , Vadim Seregin
IPC分类号： H04N19/105 , H04N19/176 , H04N19/186 , H04N19/593 , H04N19/93 , H04N19/70 , H04N19/48 , H04N19/587 , H04N19/119 , H04N19/182
CPC分类号： H04N19/176 , H04N19/105 , H04N19/119 , H04N19/182 , H04N19/186 , H04N19/48 , H04N19/587 , H04N19/593 , H04N19/70 , H04N19/93
摘要： An example method of decoding video data includes determining a palette for decoding a block of video data, where the palette includes one or more palette entries each having a respective palette index, determining a first plurality of palette indices for first pixels of the block of video data, enabling a palette coding mode based on a run length of a run of a second plurality of palette indices for second pixels of the block of video data being decoded relative to the first plurality of palette indices meeting a run length threshold, and decoding the run of the second plurality of palette indices relative to the first plurality of palette indices using the palette coding mode.
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公开(公告)号：US20170332085A1
公开(公告)日：2017-11-16
申请号：US15588516
申请日：2017-05-05
发明人： Adarsh Krishnan Ramasubramonian , Joel Sole Rojals , Yekui Wang , Dmytro Rusanovskyy , Done Bugdayci Sansli , Marta Karczewicz
IPC分类号： H04N19/167 , H04N19/70 , H04N19/172
CPC分类号： H04N19/167 , H04N19/172 , H04N19/70 , H04N19/80 , H04N19/85
摘要： Systems, methods, and computer readable media are described for generating a regional nesting message. In some examples, a video bitstream is obtained and an encoded video bitstream is generated using the video data. The encoded video bitstream includes a regional nesting message that contains a plurality of nested messages and region data defining at least a first region of a picture of the encoded video bitstream. For example, a first nested message of the regional nesting message includes a first set of data and a first region identifier indicating the first region of the picture is associated with the first set of data.
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公开(公告)号：US09716894B2
公开(公告)日：2017-07-25
申请号：US14223874
申请日：2014-03-24
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/467 , H04N19/70 , H04N19/593 , H04N19/436
CPC分类号： H04N19/467 , H04N19/436 , H04N19/593 , H04N19/70
摘要： A video coder applies a residual differential pulse code modulation technique to a residual data of a block coded using lossy coding. The block may be coded without application of a transform to the residual data.
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110.发明申请公开(公告)号：US20170085878A1
公开(公告)日：2017-03-23
申请号：US15272172
申请日：2016-09-21
发明人： Joel Sole Rojals , Adarsh Krishnan Ramasubramonian , Dmytro Rusanovskyy , Sungwon Lee , Ye-Kui Wang
IPC分类号： H04N19/124 , H04N19/186 , H04N19/18 , H04N19/98 , H04N19/44
CPC分类号： H04N19/124 , G06F3/1407 , G06T5/007 , G09G3/003 , G09G5/04 , G09G5/06 , G09G2320/0276 , G09G2340/06 , G09G2370/00 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/44 , H04N19/46 , H04N19/70 , H04N19/85 , H04N19/98
摘要： In one example, a device for processing decoded video data a video decoder implemented by one or more hardware-based processing units comprising digital logic circuitry, and a postprocessing unit implemented by one or more hardware-based processing units comprising digital logic circuitry. The video decoder is configured to decode video data of a video bitsream according to a video coding standard, extract HDR postprocessing data from an SEI message of the video bitstream, and provide the decoded video data and the HDR postprocessing data to the postprocessing unit. The postprocessing unit is configured to process the decoded video data using the HDR postprocessing data according to the video coding standard. The device may additionally determine whether the video decoder is compliant with the video coding standard by comparing the processed video data with reference processed video data.
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