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    Motion vector prediction method and related apparatus
    111.
    发明授权
    Motion vector prediction method and related apparatus 有权

    公开(公告)号：US11683496B2

    公开(公告)日：2023-06-20

    申请号：US17525944

    申请日：2021-11-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Jiali Fu

    IPC: H04N19/139 ,  H04N19/119 ,  H04N19/176 ,  H04N19/61

    CPC classification number: H04N19/139 ,  H04N19/119 ,  H04N19/176 ,  H04N19/61

    Abstract: A motion vector prediction method includes parsing a bitstream to obtain an index value of a candidate motion vector list and constructing the candidate motion vector list that includes. candidate motion vectors of K control points of a current block. The candidate motion vectors of K control points are obtained based on a 2N-parameter affine transform model used for a neighboring block of the current block, where N and K are integers greater than or equal to 2 and less than or equal to 4 with N not being equal to K. The method further includes determining, in the candidate motion vector list, target candidate motion vectors of the K control points based on the index value and obtaining a predicted motion vector of each subblock of the current block based on the target candidate motion vectors of the K control points.

    Intra-prediction using a cross-component linear model in video coding
    117.
    发明授权
    Intra-prediction using a cross-component linear model in video coding 有权

    公开(公告)号：US11528506B2

    公开(公告)日：2022-12-13

    申请号：US17146955

    申请日：2021-01-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiang Ma ,  Jianle Chen ,  Haitao Yang

    IPC: H04N19/11 ,  H04N19/593 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186

    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a video signal partitioned into a chroma block and a first neighboring luma block. The mechanism also includes encoding prediction information for chroma samples of the chroma block into a bitstream. The prediction information for the chroma samples is determined via intra-prediction based on down-sampled neighboring luma samples. The down-sampled neighboring luma samples are generated from a single row of luma samples from the first neighboring luma block. A bitstream including the prediction information for the chroma samples is transmitted to support decoding and display of the chroma samples.

    Encoder, a decoder and corresponding methods using an adaptive loop filter
    119.
    发明授权
    Encoder, a decoder and corresponding methods using an adaptive loop filter 有权

    公开(公告)号：US11523111B2

    公开(公告)日：2022-12-06

    申请号：US17356047

    申请日：2021-06-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Anand Meher Kotra ,  Semih Esenlik ,  Jianle Chen ,  Han Gao ,  Biao Wang ,  Zhijie Zhao

    IPC: H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/96

    Abstract: A method of filtering a sample value of a picture is provided, with an integer t that is less than k and with an integer j in the range of 1 to m: generating, with an integer i in the range of 1 to k−t−1, a filtered sample value by applying a filter to the value of the sample p(i,j), wherein the filter is supported by a set of filter support samples, the set of filter support samples does not comprise any samples p(i′,j′) with row index i′ greater than k−t−1, and/or generating, with an integer i in the range of k−t to k, a filtered sample value by applying a filter to the value of the sample p(i,j), the filter is supported by a set of filter support samples, wherein the set of filter support samples does not comprise any samples p(i′,j′) with row index i′ less than k−t.

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