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公开(公告)号：US20230345025A1
公开(公告)日：2023-10-26
申请号：US18339012
申请日：2023-06-21
Inventor： Ye-Kui Wang , Kai Zhang , Li Zhang , Yang Wang , Jizheng Xu , Zhipin Deng
Abstract: A mechanism for processing video data is disclosed. Video decoder initialization information is signaled between an encoder to a decoder. The video decoder initialization information contains a range of initialization parameters for a plurality of video units when the plurality of video units are coded according to a same video codec and a same profile. A conversion is performed between a visual media data and a visual media data file based on the range of initialization parameters.
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公开(公告)号：US20230300337A1
公开(公告)日：2023-09-21
申请号：US18322461
申请日：2023-05-23
Inventor： Zhipin Deng , Li Zhang , Hongbin Liu , Kai Zhang , Jizheng Xu , Yang Wang , Yue Wang
IPC: H04N19/132 , H04N19/105 , H04N19/137 , H04N19/176 , H04N19/70
CPC classification number: H04N19/132 , H04N19/105 , H04N19/137 , H04N19/176 , H04N19/70
Abstract: A method of processing video data is described. The method includes performing a conversion between a current video block of a video and a bitstream of the video. A geometric partitioning mode index for the current video block is coded in the bitstream and a binarization of the geometric partitioning mode index is performed according to a rule. The geometric partitioning mode index specifies a geometric splitting shape of a geometric partitioning mode applied to the current video block. The rule specifies that the geometric partitioning mode index is coded with a fixed-length binarization.
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公开(公告)号：US20230179766A1
公开(公告)日：2023-06-08
申请号：US17977630
申请日：2022-10-31
Inventor： Yang Wang , Li Zhang , Zhipin Deng , Kai Zhang , Hongbin Liu
IPC: H04N19/119 , H04N19/70 , H04N19/176
CPC classification number: H04N19/119 , H04N19/70 , H04N19/176
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a current block of a video and a bitstream of the video according to a rule. The rule specifies that selection of a context for coding a syntax element specifying whether the block is split horizontally or vertically is based on a number of allowed vertical splits and a number of allowed horizontal splits. The number of allowed vertical splits includes a number of allowed binary vertical splits and a number of allowed ternary vertical splits, and the number of allowed horizontal splits includes a number of allowed binary horizontal splits and a number of allowed ternary horizontal splits.
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公开(公告)号：US11653002B2
公开(公告)日：2023-05-16
申请号：US17541092
申请日：2021-12-02
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yang Wang , Yue Wang
IPC: H04N19/52 , H04N19/137 , H04N19/105 , H04N19/176 , H04N19/132
CPC classification number: H04N19/137 , H04N19/105 , H04N19/132 , H04N19/176
Abstract: A method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, an operation associated with a list of motion candidates based on a condition related to a characteristic of the current block. The list of motion candidates is constructed for a coding technique or based on information from previously processed blocks of the video. The method also includes performing the conversion based on the determining.
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公开(公告)号：US20230075048A1
公开(公告)日：2023-03-09
申请号：US17968536
申请日：2022-10-18
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/132 , H04N19/105 , H04N19/186 , H04N19/176
Abstract: A method of video processing is provided to include determining, for a conversion between a video block of a video and a bitstream of the video, a parameter of a cross-component linear model (CCLM) for the video block according to a rule, and performing the conversion based on the determining, and wherein the rule specifies to use a variable representing a neighbouring luma sample in the determining of the parameter of the CCLM only in case that the variable has a certain value.
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Patent Agency Ranking
公开(公告)号：US20230069756A1
公开(公告)日：2023-03-02
申请号：US17968510
申请日：2022-10-18
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/11 , H04N19/136 , H04N19/186 , H04N19/593 , H04N19/124
Abstract: A method of video processing is provided to include determining, for a conversion between a video block of a video having a 4:2:2 color format and a bitstream of the video, a parameter of a cross-component linear model for the video block according to a rule and performing the conversion based on the determining, wherein a syntax element indicates whether chroma samples of the video are vertically shifted relative to luma samples of the video and wherein the rule specifies that the parameter is determined independent of a value of the syntax element.
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公开(公告)号：US20230063736A1
公开(公告)日：2023-03-02
申请号：US17968553
申请日：2022-10-18
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/132 , H04N19/105 , H04N19/80 , H04N19/186 , H04N19/176 , H04N19/70
Abstract: A method of video processing is provided. The method includes determining, for a conversion between a video comprising a video unit and a bitstream of the video, whether a first coding tool is enabled for the video unit according to a rule. The rule specifies that the first coding tool and a second coding tool are mutually exclusively enabled. The first coding tool or the second coding tool comprises a sign data hiding tool. The method also includes performing the conversion according to the determining.
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公开(公告)号：US20230059008A1
公开(公告)日：2023-02-23
申请号：US17962894
申请日：2022-10-10
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yang Wang , Yue Wang
IPC: H04N19/137 , H04N19/105 , H04N19/132 , H04N19/176
Abstract: A method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, an operation associated with a list of motion candidates based on a condition related to a characteristic of the current block. The list of motion candidates is constructed for a coding technique or based on information from previously processed blocks of the video. The method also includes performing the conversion based on the determining.
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公开(公告)号：US12170789B2
公开(公告)日：2024-12-17
申请号：US17873917
申请日：2022-07-26
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yang Wang , Jizheng Xu , Yue Wang
IPC: H04N19/513 , H04N19/577
Abstract: Motion compensation along different directions is disclosed. A method for video processing including: determining, for a conversion between a current video block of a video and a bitstream representation of the current video block, optical flow associated with the current video block in an optical flow-based motion refinement process or prediction process, wherein the optical flow is derived along directions that are different from a horizontal direction and/or a vertical direction; and performing the conversion based on the optical flow.
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公开(公告)号：US12114016B2
公开(公告)日：2024-10-08
申请号：US17888238
申请日：2022-08-15
Inventor： Kai Zhang , Li Zhang , Yang Wang , Ye-kui Wang , Zhipin Deng , Jizheng Xu , Hongbin Liu
IPC: H04N19/70 , H04N19/117 , H04N19/119 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/46 , H04N19/635 , H04N19/82
CPC classification number: H04N19/70 , H04N19/117 , H04N19/119 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/46 , H04N19/635 , H04N19/82
Abstract: A method includes performing a conversion between a video unit of a video and a bitstream of the video. The bitstream conforms to a format rule. The format rule specifies that a syntax element indicating whether an in-loop filtering operation is performed across slice boundaries is selectively included in the bitstream based on whether or how the video unit is partitioned into slices.
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