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    METHOD FOR OBTAINING CANDIDATE MOTION VECTOR LIST, APPARATUS, ENCODER, AND DECODER
    1.
    发明申请
    METHOD FOR OBTAINING CANDIDATE MOTION VECTOR LIST, APPARATUS, ENCODER, AND DECODER 有权

    公开(公告)号：US20230121428A1

    公开(公告)日：2023-04-20

    申请号：US17975932

    申请日：2022-10-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang CHEN ,  Haitao YANG ,  Lian ZHANG

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/30

    Abstract: This disclosure discloses a method for obtaining a candidate motion vector list, an apparatus, an encoder, and a decoder. The method for obtaining a candidate motion vector list comprises: when a first candidate picture block is encoded/decoded and an inter prediction mode is used, determining whether a reference picture of the first candidate picture block is the same as a reference picture of a current block; and constructing a candidate motion vector list of the current block based on a determining result; when the reference picture of the first candidate picture block is different from the reference picture of the current block, the MV of the first candidate picture block is not used to construct the list. Implementing this disclosure can reduce complexity of a motion information derivation process, and improve coding efficiency.

    METHOD FOR OBTAINING CANDIDATE MOTION VECTOR LIST, APPARATUS, ENCODER, AND DECODER
    3.
    发明申请
    METHOD FOR OBTAINING CANDIDATE MOTION VECTOR LIST, APPARATUS, ENCODER, AND DECODER 有权

    公开(公告)号：US20210176462A1

    公开(公告)日：2021-06-10

    申请号：US17180274

    申请日：2021-02-19

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang CHEN ,  Haitao YANG ,  Lian ZHANG

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/30 ,  H04N19/176

    Abstract: This disclosure discloses a method for obtaining a candidate motion vector list, an apparatus, an encoder, and a decoder. The method for obtaining a candidate motion vector list comprises: when a first candidate picture block is encoded/decoded and an inter prediction mode is used, determining whether a reference picture of the first candidate picture block is the same as a reference picture of a current block; and constructing a candidate motion vector list of the current block based on a determining result; when the reference picture of the first candidate picture block is different from the reference picture of the current block, the MV of the first candidate picture block is not used to construct the list. Implementing this disclosure can reduce complexity of a motion information derivation process, and improve coding efficiency.

    METHOD FOR CONSTRUCTING MPM LIST, METHOD FOR OBTAINING INTRA PREDICTION MODE OF CHROMA BLOCK, AND APPARATUS
    4.
    发明申请
    METHOD FOR CONSTRUCTING MPM LIST, METHOD FOR OBTAINING INTRA PREDICTION MODE OF CHROMA BLOCK, AND APPARATUS 有权

    公开(公告)号：US20220094947A1

    公开(公告)日：2022-03-24

    申请号：US17541467

    申请日：2021-12-03

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiang MA ,  Haitao YANG ,  Yin ZHAO ,  Lian ZHANG

    IPC: H04N19/159 ,  H04N19/176 ,  H04N19/103 ,  H04N19/186 ,  H04N19/70

    Abstract: This application discloses a method for constructing an MPM list, a method for obtaining an intra prediction mode of a chroma block, and an apparatus. In a specific implementation, a MIP mode is used for a current block, and the method for constructing an MPM list includes: obtaining intra prediction mode information of a neighboring block; determining, based on the intra prediction mode information of the neighboring block, whether an intra prediction mode of the neighboring block is the MIP mode; and skipping using the intra prediction mode of the neighboring block for MPM list construction of the current block if the intra prediction mode of the neighboring block is not the MIP mode; or using the intra prediction mode of the neighboring block for MPM list construction of the current block if the intra prediction mode of the neighboring block is the MIP mode.

    PICTURE DISPLAY ORDER DETERMINING METHOD AND APPARATUS, AND VIDEO CODING DEVICE
    5.
    发明申请
    PICTURE DISPLAY ORDER DETERMINING METHOD AND APPARATUS, AND VIDEO CODING DEVICE 有权

    公开(公告)号：US20210360235A1

    公开(公告)日：2021-11-18

    申请号：US17382421

    申请日：2021-07-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Haitao YANG ,  Yuqun FAN ,  Xiang MA ,  Huanbang CHEN ,  Lian ZHANG

    IPC: H04N19/112 ,  H04N19/105 ,  H04N19/513 ,  H04N19/70 ,  H04N19/82 ,  H04N19/172 ,  H04N19/137

    Abstract: This application discloses a picture display order determining method which includes: obtaining a decoding order index value of a current picture and a decoding order index value of a previous picture that is adjacent to the current picture according to a decoding order; adding 1 to a cycle identifier value when the decoding order index value of the current picture is less than the decoding order index value of the previous picture; and determining a display order index value of the current picture based on a sum of the decoding order index value of the current picture and a preset positive integer multiple of the cycle identifier value. In this application, the display order index value of the current picture progressively increases based on a display order index value of a picture that is located before the current picture according to the decoding order.

    VIDEO DECODING METHOD AND APPARATUS, AND DECODING DEVICE
    6.
    发明申请
    VIDEO DECODING METHOD AND APPARATUS, AND DECODING DEVICE 有权

    公开(公告)号：US20210321127A1

    公开(公告)日：2021-10-14

    申请号：US17357473

    申请日：2021-06-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Lian ZHANG

    IPC: H04N19/44 ,  H04N19/119 ,  H04N19/96 ,  H04N19/176

    Abstract: This application discloses a video decoding method and apparatus, and a decoding device. The method includes: obtaining block information of a current picture block; determining, based on the block information, whether a split mode in a set of optional split modes is available determining a split mode of the current picture block from a determined available split mode; obtaining one CU or a plurality of CUs from the current picture block based on the split mode of the current picture block, and parsing a bitstream including the current picture block, to obtain decoding information of the one CU or the plurality of CUs, and decoding the CU based on the decoding information, to obtain a reconstructed block.

    PICTURE PARTITIONING METHOD AND APPARATUS
    7.
    发明申请
    PICTURE PARTITIONING METHOD AND APPARATUS 有权

    公开(公告)号：US20210185316A1

    公开(公告)日：2021-06-17

    申请号：US17187184

    申请日：2021-02-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Jianle CHEN ,  Lian ZHANG

    IPC: H04N19/119 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176

    Abstract: A picture partitioning method and apparatus are described. The method includes determining a split mode of a current node, where the current node includes a luma block and a chroma block. The method further includes determining, based on the split mode of the current node and a size of the current node, that the chroma block of the current node is not further split. In accordance with the chroma block of the current node not being further split, the method includes splitting the luma block of the current node based on the split mode of the current node. In accordance with the chroma block of the current node not being further split, the method may be used to split only the luma block of the current node, thereby improving encoding and decoding efficiency, reducing a maximum throughput of a codec, and facilitating implementation of the codec.

    PICTURE RECONSTRUCTION METHOD AND APPARATUS
    9.
    发明申请
    PICTURE RECONSTRUCTION METHOD AND APPARATUS 有权

    公开(公告)号：US20250159206A1

    公开(公告)日：2025-05-15

    申请号：US19026849

    申请日：2025-01-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Riyang ZHAO ,  Zhongliang LI ,  Lian ZHANG

    IPC: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/186

    Abstract: A picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block.

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