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    PICTURE PARTITIONING METHOD AND APPARATUS
    21.
    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.

    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING
    22.
    发明申请
    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING 有权

    公开(公告)号：US20210136372A1

    公开(公告)日：2021-05-06

    申请号：US17144976

    申请日：2021-01-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Han GAO ,  Jianle CHEN ,  Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA

    IPC: H04N19/119 ,  H04N19/192 ,  H04N19/96 ,  H04N19/176

    Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.

    METHOD AND APPARATUS FOR INTRA PREDICTION
    23.
    发明申请
    METHOD AND APPARATUS FOR INTRA PREDICTION 有权

    公开(公告)号：US20250008114A1

    公开(公告)日：2025-01-02

    申请号：US18828954

    申请日：2024-09-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Alexey Konstantinovich FILIPPOV ,  Vasily Alexeevich RUFITSKIY ,  Jianle CHEN

    IPC: H04N19/159 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

    Abstract: Apparatuses and methods for intra predicting a block are described. The method of intra predicting a current block can include obtaining a predicted sample value from one or more reference sample values by using an intra prediction mode, obtaining at least one additional reference sample value in accordance with the intra prediction mode, and obtaining a thresholded additional reference sample value based on the additional reference sample value. The method can also include calculating an additional value from the thresholded additional reference sample value, multiplying the predicted sample value by a sample weighting factor, resulting in a weighted predicted sample value, adding the additional value to the weighted predicted sample value, resulting in a non-normalized predicted sample value, and normalizing the non-normalized predicted sample value, resulting in a normalized predicted sample values. The accuracy for the intra prediction is thus increased.

    VIDEO PICTURE PREDICTION METHOD AND APPARATUS
    26.
    发明公开
    VIDEO PICTURE PREDICTION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20240007663A1

    公开(公告)日：2024-01-04

    申请号：US18345223

    申请日：2023-06-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang CHEN ,  Xiang MA ,  Haitao YANG ,  Jianle CHEN

    IPC: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    Abstract: This application provides a video picture prediction method and apparatus, to resolve a problem in a conventional technology that a length of a coded video sequence is increased. The first type of identifier may be added to a bitstream. The first type of identifier is used to indicate whether an affine motion model-based inter prediction mode is enabled for a video picture. For a video picture or a picture block included in the slice for which the affine motion model does not need to be used, a parameter, related to the affine motion model, of the picture block may not need to be transmitted. On a decoder side, during decoding of the picture block, the parameter related to the affine motion model does not need to be parsed. This can reduce load of a decoder, increase a processing speed, and decrease a processing time.

    BI-DIRECTIONAL INTER PREDICTION METHOD AND APPARATUS
    27.
    发明公开
    BI-DIRECTIONAL INTER PREDICTION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20230421755A1

    公开(公告)日：2023-12-28

    申请号：US18462625

    申请日：2023-09-07

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang CHEN ,  Jianle CHEN ,  Haitao YANG

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/137

    CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/137

    Abstract: Embodiments of this application disclose a bi-directional inter prediction method and apparatus. The method includes: determining a reference picture index i1 of a first reference picture list as a first reference picture index; determining a reference picture index i2 of a second reference picture list as a second reference picture index; and predicting the current block based on the first reference picture index and the second reference picture index. A POC corresponding to i1 is a POC, closest to a POC of a current picture, in all POCs that are in the first reference picture list and that are less than the POC of the current picture, a POC corresponding to i2 is a POC, closest to the POC of the current picture, in all POCs that are in the second reference picture list and that are greater than the POC of the current picture. Coding efficiency can be improved.

    ENCODER, A DECODER AND CORRESPONDING METHODS USING IBC MERGE LIST
    28.
    发明申请
    ENCODER, A DECODER AND CORRESPONDING METHODS USING IBC MERGE LIST 有权

    公开(公告)号：US20230130158A1

    公开(公告)日：2023-04-27

    申请号：US18080903

    申请日：2022-12-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Han GAO ,  Semih ESENLIK ,  Biao WANG ,  Anand Meher KOTRA ,  Jianle CHEN

    IPC: H04N19/513 ,  H04N19/176

    Abstract: The present disclosure provides methods and devices of construct a candidate merge list for Intra block copy (IBC) mode, the method comprising: inserting a block vector of a left neighboring block of a current block into an initial merge list, when the left neighboring block is available and the left neighboring block is using IBC mode; inserting a block vector of an above neighboring block of the current block into the initial merge list, when the above neighboring block is available, the above neighboring block is using IBC mode and the block vector of the above neighboring block is not same as the block vector of the left neighboring block; inserting a block vector of the last candidate in a history based motion vector predictor (HMVP) into the initial merge list; obtaining a block vector of the current block according to the initial merge list.

    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING
    29.
    发明申请
    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING 有权

    公开(公告)号：US20230019654A1

    公开(公告)日：2023-01-19

    申请号：US17876317

    申请日：2022-07-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Han GAO ,  Jianle CHEN ,  Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA

    IPC: H04N19/119 ,  H04N19/176 ,  H04N19/192 ,  H04N19/96

    Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.

    PICTURE PARTITIONING METHOD AND APPARATUS
    30.
    发明申请
    PICTURE PARTITIONING METHOD AND APPARATUS 有权

    公开(公告)号：US20220329795A1

    公开(公告)日：2022-10-13

    申请号：US17734829

    申请日：2022-05-02

    Applicant: Huawei Technologies Co., Ltd.

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

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

    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.

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