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    RESTRICTIONS OF USAGE OF NON-POWER-TWO-PARTITION TREE IN VIDEO COMPRESSION
    81.
    发明申请
    RESTRICTIONS OF USAGE OF NON-POWER-TWO-PARTITION TREE IN VIDEO COMPRESSION 有权

    公开(公告)号：US20210377529A1

    公开(公告)日：2021-12-02

    申请号：US17401447

    申请日：2021-08-13

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

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

    IPC: H04N19/119 ,  H04N19/96 ,  H04N19/176

    Abstract: Restrictions of usage of non-power-two-partition tree in video compression is described. In an exemplary aspect, a method for video processing includes determining, for a conversion between a video and a bitstream representation of the video, whether non-power-of-two partition trees (NPT-T) partition is enabled or disabled, wherein the NPT-T partition include splitting a first block of the video into multiple smaller sized child blocks of the first block, and width (Wi) and/or height (Hi) of at least one child block is a non-power-of-two integer; determining restrictions associated with usage of the NPT-T partition in response to the determination that the NPT-T partition is allowed; and performing the conversion based on the determinations.

    CONDITIONS FOR UPDATING LUTS
    83.
    发明申请
    CONDITIONS FOR UPDATING LUTS 有权

    公开(公告)号：US20210360278A1

    公开(公告)日：2021-11-18

    申请号：US17369132

    申请日：2021-07-07

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

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

    IPC: H04N19/513 ,  H04N19/94 ,  H04N19/176

    Abstract: Devices, systems and methods for processing video are described. In a representative aspect, a video processing method is provided to include: maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; performing a conversion between a first video block and a bitstream representation of a video including the first video block based on the tables; and updating, after performing of the conversion, zero or more tables, based on an update rule.

    HARMONIZATION BETWEEN DIFFERENT VIDEO PROCESS MODE
    85.
    发明申请
    HARMONIZATION BETWEEN DIFFERENT VIDEO PROCESS MODE 有权

    公开(公告)号：US20210360232A1

    公开(公告)日：2021-11-18

    申请号：US17389037

    申请日：2021-07-29

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

    Inventor： Hongbin LIU ,  Li ZHANG ,  Kai ZHANG ,  Jizheng XU ,  Yue WANG ,  Na ZHANG

    IPC: H04N19/107 ,  H04N19/176 ,  H04N19/96

    Abstract: The present application relates to harmonization between different video process mode. A method for processing video includes: determining, during a conversion between a first block in a video data and a bitstream representation of the first block, one or more coded modes of one or more second blocks; determining, based on the one or more coded modes of the one or more second blocks, a coded mode constraint of the first block; and performing, at least by applying the coded mode constraint of the first block, the conversion; wherein the one or more second blocks comprise at least one of an adjacent block, a non-adjacent block, and a reference block of the first block.

    INTRA BLOCK COPY MODE WITH DUAL TREE PARTITION
    90.
    发明申请
    INTRA BLOCK COPY MODE WITH DUAL TREE PARTITION 有权

    公开(公告)号：US20210314610A1

    公开(公告)日：2021-10-07

    申请号：US17353612

    申请日：2021-06-21

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

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

    IPC: H04N19/593 ,  H04N19/96 ,  H04N19/176 ,  H04N19/184

    Abstract: The application relates to an intra block copy mode with dual tree partition. A method of video processing is disclosed. The method of video processing includes: determining, during a conversion between a current video block and a bitstream representation of the current video block, a block vector for the current video block; and performing, at least based on the block vector, the conversion, wherein when the current video block is coded with a coding mode using a reference block for prediction pointing to a same picture that the current video block is located in, and the current video block is a first type of block, the block vector is derived from at least one second type of block.

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