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    INTERACTION BETWEEN LUT AND AMVP
    61.
    发明公开
    INTERACTION BETWEEN LUT AND AMVP 审中-公开

    公开(公告)号：EP4325861A3

    公开(公告)日：2024-03-06

    申请号：EP23220549.2

    申请日：2019-07-01

    申请人： Beijing Bytedance Network Technology Co., Ltd. ,  ByteDance Inc.

    发明人： ZHANG, Li ,  ZHANG, Kai ,  LIU, Hongbin ,  WANG, Yue

    IPC分类号： H04N19/52 ,  H04N19/70

    摘要： A method of video decoding 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; and performing a conversion between a first video block and a bitstream representation of a video including the first video block, the performing of the conversion including using at least some of the set of motion candidates as a predictor to process motion information of the first video block.

    SYNTAX REUSE FOR AFFINE MODE WITH ADAPTIVE MOTION VECTOR RESOLUTION
    63.
    发明公开
    SYNTAX REUSE FOR AFFINE MODE WITH ADAPTIVE MOTION VECTOR RESOLUTION 审中-公开

    公开(公告)号：EP4325859A2

    公开(公告)日：2024-02-21

    申请号：EP23219635.2

    申请日：2019-09-19

    申请人： Beijing Bytedance Network Technology Co., Ltd. ,  ByteDance Inc.

    发明人： LIU, Hongbin ,  ZHANG, Li ,  ZHANG, Kai ,  WANG, Yue

    IPC分类号： H04N19/70

    摘要： A method of processing video data comprises determining that a coding mode for a first video block is an affine inter mode or a non-affine inter mode, determining, for motion information of the first video block, a motion precision from a motion precision set including multiple motion precisions, and coding the first video block based on the determined coding mode and the determined motion precision. Multiple syntax elements are selectively present in a video bitstream to indicate the motion precision in the motion precision set, and semantics of at least one syntax element of the multiple syntax elements are different in the non-affine inter mode and in the affine inter mode. The multiple syntax elements include a first syntax element and a second syntax element, whether the first syntax element for the first video block is present in the video bitstream based on motion vector differences, MVDs, of control point motion vectors of the first video block and at least one motion vector difference of at least one control point motion vectors of the first video block being non-zero, and the second syntax element is present in the video bitstream only in case that the first syntax element is present in the video bitstream with a specific value. The first syntax element is coded using context-based coding that includes a use of at least one context model and at least one context, wherein at least one same context model is used for the first syntax element of both blocks coded with the affine inter mode and blocks coded with the non-affine inter mode, and selection of context is dependent on whether the coding mode of the block is the affine inter mode or the non-affine inter mode. The second syntax element is coded using context-based coding that includes a use of at least one context model and at least one context, wherein at least one same context model is used for the second syntax element of both blocks coded with the affine inter mode and blocks coded with the non-affine inter mode, and selection of context is dependent on whether the coding mode of the block is the affine inter mode or the non-affine inter mode.

    INTERPOLATION FOR INTER PREDICTION WITH REFINEMENT
    65.
    发明公开
    INTERPOLATION FOR INTER PREDICTION WITH REFINEMENT 审中-公开

    公开(公告)号：EP4300965A2

    公开(公告)日：2024-01-03

    申请号：EP23203581.6

    申请日：2019-11-05

    申请人： Beijing Bytedance Network Technology Co., Ltd. ,  ByteDance Inc.

    发明人： ZHANG, Kai ,  ZHANG, Li ,  LIU, Hongbin ,  WANG, Yue

    IPC分类号： H04N19/577

    摘要： Devices, systems and methods for digital video coding, which includes inter prediction with refinement, are described. An exemplary method of video processing includes determining to use, for a conversion between a current block of a video and a bitstream representation of the video, a first linear optimization model for the conversion using a first coding mode, the first linear optimization model being derived from a second linear optimization model that is used for the conversion using a second coding mode, and performing, based on the determining, the conversion. Another exemplary method of video processing includes determining to use, for a conversion between a current block of a video and a bitstream representation of the video, a gradient value computation algorithm for a bi-directional optical flow tool, and performing, based on the determining, the conversion.