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    SELECTIVE APPLICATION OF SAMPLE PADDING IN ADAPTIVE LOOP FILTERING
    175.
    发明申请
    SELECTIVE APPLICATION OF SAMPLE PADDING IN ADAPTIVE LOOP FILTERING 有权

    公开(公告)号：US20230081202A1

    公开(公告)日：2023-03-16

    申请号：US17701303

    申请日：2022-03-22

    Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

    Inventor： Hongbin LIU ,  Li ZHANG ,  Kai ZHANG ,  Yue WANG

    IPC: H04N19/117 ,  H04N19/176 ,  H04N19/174 ,  H04N19/70

    Abstract: An example method of video processing includes making a first determination, for a conversion between a current block of a video and a bitstream representation of the video, about whether a sample in a neighboring block of the current block is in a same video region as the current block and using the first determination to make a second determination about applicability of a coding tool that uses samples outside the current block to the conversion of the current block. The coding tool comprises an adaptive loop filter (ALF) tool that comprises an ALF classification process and/or an ALF filtering process. The method also includes performing the conversion according to the first determination and the second determination.

    SYNTAX SIGNALING AND PARSING BASED ON COLOUR COMPONENT
    179.
    发明申请
    SYNTAX SIGNALING AND PARSING BASED ON COLOUR COMPONENT 有权

    公开(公告)号：US20220264124A1

    公开(公告)日：2022-08-18

    申请号：US17731472

    申请日：2022-04-28

    Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

    Inventor： Zhipin DENG ,  Kai ZHANG ,  Li ZHANG ,  Hongbin LIU ,  Jizheng XU

    IPC: H04N19/186 ,  H04N19/124 ,  H04N19/593 ,  H04N19/157 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/136 ,  H04N19/11

    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes generating, for a conversion between a current video block of a video including multiple video blocks and a bitstream representation of the video, a most probable mode (MPM) list for a matrix based intra prediction (MIP) tool based on a rule, where, the MIP tool includes determining, during the conversion, a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, and where the rule specifies a mapping between a number of MIP modes and dimensions of the multiple video blocks; and performing the conversion based on the generating.

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