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    ADAPTIVE COLOR TRANSFORM IN VIDEO CODING
    2.
    发明申请
    ADAPTIVE COLOR TRANSFORM IN VIDEO CODING 有权

    公开(公告)号：US20220368898A1

    公开(公告)日：2022-11-17

    申请号：US17852934

    申请日：2022-06-29

    Applicant: Bytedance Inc.

    Inventor： Weijia ZHU ,  Li ZHANG ,  Jizheng XU ,  Kai ZHANG ,  Ye-kui WANG

    IPC: H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  H04N19/176

    Abstract: A method of video processing, including performing a conversion between a video unit of a video and a bitstream representation of the video, wherein the conversion includes applying a deblocking filter to at least some samples on boundaries of the video unit, wherein deblocking quantization parameter (QP) values used in the deblocking filter are determined according to a rule, and wherein the rule specifies that whether the deblocking QP values are equal to dequantization QP values for the video unit is based on whether an adaptive color transform (ACT) mode is applied to the video unit.

    QUANTIZATION PARAMETER FOR CHROMA DEBLOCKING FILTERING
    4.
    发明申请
    QUANTIZATION PARAMETER FOR CHROMA DEBLOCKING FILTERING 有权

    公开(公告)号：US20220210408A1

    公开(公告)日：2022-06-30

    申请号：US17694253

    申请日：2022-03-14

    Applicant: Bytedance Inc.

    Inventor： Weijia ZHU ,  Li ZHANG ,  Jizheng XU

    IPC: H04N19/117 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176

    Abstract: An example method of video processing includes determining, for a conversion between a block of a chroma component of a video and a bitstream representation of the video, whether or how to apply a filtering process to an edge of the block based on a first quantization information for a first video region comprising samples on one side of the edge and/or a second quantization information for a second video region comprising samples on the other side of the edge according to a rule that is based on a coding mode applicable to the block for coding the samples on the one side or the samples on the other side of the edge. The rule specifies that multiple QP offsets at different video unit levels are used to determine the first quantization information or the second quantization information. The method also includes performing the conversion based on the determining.

    INTRA CODED VIDEO USING QUANTIZED RESIDUAL DIFFERENTIAL PULSE CODE MODULATION CODING
    7.
    发明申请
    INTRA CODED VIDEO USING QUANTIZED RESIDUAL DIFFERENTIAL PULSE CODE MODULATION CODING 有权

    公开(公告)号：US20220038687A1

    公开(公告)日：2022-02-03

    申请号：US17502233

    申请日：2021-10-15

    Applicant: Bytedance Inc.

    Inventor： Weijia ZHU ,  Li ZHANG ,  Jizheng XU ,  Hsiao Chiang CHUANG

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176

    Abstract: Video coding and decoding methods are described. In example method includes performing a conversion between a current video block of a video and a bitstream representation of the current video block by determining a first intra coding mode to be stored which is associated with the current video block using a differential coding mode, where the first intra coding mode associated with the current video block is determined according to a second prediction mode used by the differential coding mode, and where, in the differential coding mode, a difference between a quantized residual of an intra prediction of the current video block and a prediction of the quantized residual is represented in the bitstream representation for the current video block using a differential pulse coding modulation (DPCM) representation.

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