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    INTER PREDICTION METHOD AND APPARATUS
    2.
    发明申请
    INTER PREDICTION METHOD AND APPARATUS 有权

    公开(公告)号：US20250055978A1

    公开(公告)日：2025-02-13

    申请号：US18929661

    申请日：2024-10-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Na Zhang ,  Jicheng An ,  Quanhe Yu ,  Jianhua Zheng

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

    Abstract: An inter prediction method is provided, including: obtaining a first reference frame index and a first motion vector of a to-be-processed block; deriving a second reference frame index from the first reference frame index, where the second reference frame index is different from the first reference frame index; scaling the first motion vector to obtain a second motion vector; obtaining a first reference block of the to-be-processed block according to the first reference frame index and the first motion vector; obtaining a second reference block of the to-be-processed block according to the second reference frame index and the second motion vector; and weighting the first reference block and the second reference block to obtain a combined prediction block. Each reference list for inter prediction is allowed to include two groups of motion information, which helps improve an inter prediction effect.

    Inter prediction method and apparatus for video coding
    3.
    发明授权
    Inter prediction method and apparatus for video coding 有权

    公开(公告)号：US11412210B2

    公开(公告)日：2022-08-09

    申请号：US17011163

    申请日：2020-09-03

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Na Zhang ,  Jicheng An ,  Quanhe Yu ,  Jianhua Zheng

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

    Abstract: An inter prediction method is provided, including: obtaining a first reference frame index and a first motion vector of a to-be-processed block (101); deriving a second reference frame index from the first reference frame index, where the second reference frame index is different from the first reference frame index (102); scaling the first motion vector to obtain a second motion vector (103); obtaining a first reference block of the to-be-processed block according to the first reference frame index and the first motion vector (104); obtaining a second reference block of the to-be-processed block according to the second reference frame index and the second motion vector (105); and weighting the first reference block and the second reference block to obtain a combined prediction block (106). Each reference list for inter prediction is allowed to include two groups of motion information, which helps improve an inter prediction effect.

    METHOD AND APPARATUS FOR INTRA PREDICTION OF PICTURE BLOCK
    4.
    发明申请
    METHOD AND APPARATUS FOR INTRA PREDICTION OF PICTURE BLOCK 有权

    公开(公告)号：US20210014506A1

    公开(公告)日：2021-01-14

    申请号：US17035711

    申请日：2020-09-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Na Zhang ,  Jicheng An ,  Jianhua Zheng

    IPC: H04N19/159 ,  H04N19/105 ,  H04N19/186 ,  H04N19/176

    Abstract: A method and an apparatus and for intra prediction of a picture block are provided, to provide a manner of predicting a current block by using spatial non-adjacent blocks or a temporal neighboring block, thereby improving coding performance. In various embodiments, a first luma intra mode set is constructed; and a bitstream is parsed to obtain a first identifier. In those embodiments, when the first identifier indicates that a luma prediction mode of the current block belongs to the first luma intra mode set, the bitstream is parsed to obtain a second identifier. The second identifier indicates that a candidate luma prediction mode in the first luma intra mode set is used as the luma prediction mode of the current block. Still in those embodiments, a luma prediction value of the current block is obtained based on the luma prediction mode of the current block.

    Inter prediction method and apparatus
    5.
    发明授权
    Inter prediction method and apparatus 有权

    公开(公告)号：US12143569B2

    公开(公告)日：2024-11-12

    申请号：US17872240

    申请日：2022-07-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Na Zhang ,  Jicheng An ,  Quanhe Yu ,  Jianhua Zheng

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

    Abstract: An inter prediction method is provided, including: obtaining a first reference frame index and a first motion vector of a to-be-processed block (101); deriving a second reference frame index from the first reference frame index, where the second reference frame index is different from the first reference frame index (102); scaling the first motion vector to obtain a second motion vector (103); obtaining a first reference block of the to-be-processed block according to the first reference frame index and the first motion vector (104); obtaining a second reference block of the to-be-processed block according to the second reference frame index and the second motion vector (105); and weighting the first reference block and the second reference block to obtain a combined prediction block (106). Each reference list for inter prediction is allowed to include two groups of motion information, which helps improve an inter prediction effect.

    Method and apparatus for intra prediction of picture block
    7.
    发明授权
    Method and apparatus for intra prediction of picture block 有权

    公开(公告)号：US11457222B2

    公开(公告)日：2022-09-27

    申请号：US17035711

    申请日：2020-09-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Na Zhang ,  Jicheng An ,  Jianhua Zheng

    IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    Abstract: A method and an apparatus and for intra prediction of a picture block are provided, to provide a manner of predicting a current block by using spatial non-adjacent blocks or a temporal neighboring block, thereby improving coding performance. In various embodiments, a first luma intra mode set is constructed; and a bitstream is parsed to obtain a first identifier. In those embodiments, when the first identifier indicates that a luma prediction mode of the current block belongs to the first luma intra mode set, the bitstream is parsed to obtain a second identifier. The second identifier indicates that a candidate luma prediction mode in the first luma intra mode set is used as the luma prediction mode of the current block. Still in those embodiments, a luma prediction value of the current block is obtained based on the luma prediction mode of the current block.

    Video Picture Inter Prediction Method and Apparatus, and Codec
    10.
    发明申请
    Video Picture Inter Prediction Method and Apparatus, and Codec 审中-公开

    公开(公告)号：US20200228830A1

    公开(公告)日：2020-07-16

    申请号：US16832707

    申请日：2020-03-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Na Zhang ,  Jianhua Zheng ,  Jicheng An

    IPC: H04N19/587 ,  H04N19/159 ,  H04N19/137

    Abstract: A video picture inter prediction method includes determining an inter prediction mode used to perform inter prediction on a current picture block, where the inter prediction mode is one mode in a candidate inter prediction mode set, and the candidate inter prediction mode set includes a plurality of inter prediction modes used for a non-directional motion field or a plurality of inter prediction modes used for a directional motion field, and performing inter prediction on the current picture block based on the determined inter prediction mode.

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