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    VIDEO ENCODER, VIDEO DECODER, AND CORRESPONDING METHOD
    31.
    发明公开
    VIDEO ENCODER, VIDEO DECODER, AND CORRESPONDING METHOD 审中-公开

    公开(公告)号：US20230336725A1

    公开(公告)日：2023-10-19

    申请号：US18337330

    申请日：2023-06-19

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Jianle CHEN

    IPC: H04N19/122 ,  H04N19/119 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

    CPC classification number: H04N19/122 ,  H04N19/119 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

    Abstract: A video decoding method includes parsing a bitstream to obtain a split mode to transform units (TUs) in a current coding unit (CU). Each of the TUs includes a serial number in a one-to-one correspondence with positions of the TUs in the current CU. A transform coefficient of a luminance transform block of a current TU in the TUs is obtained. A transform type of the luminance transform block of the current TU is obtained based on the split mode and a serial number of the current TU. An inverse transform on the transform coefficient of the luminance transform block of the current TU is performed based on the transform type of the luminance transform block of the current TU to obtain a reconstructed residual of the luminance transform block of the current TU. A reconstructed block of the current CU is obtained based on the reconstructed residual.

    PICTURE DATA ENCODING METHOD AND APPARATUS AND PICTURE DATA DECODING METHOD AND APPARATUS
    32.
    发明申请
    PICTURE DATA ENCODING METHOD AND APPARATUS AND PICTURE DATA DECODING METHOD AND APPARATUS 有权

    公开(公告)号：US20220124377A1

    公开(公告)日：2022-04-21

    申请号：US17646707

    申请日：2021-12-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Shan LIU

    IPC: H04N19/96 ,  H04N19/172 ,  H04N19/184

    Abstract: Embodiments of this application disclose a decoding method includes: obtaining a bitstream including picture data; parsing the bitstream to obtain node split mode information of a first-level coding tree and node split mode information of a second-level coding tree, if the split mode corresponding to the first node is no further splitting, parsing the bitstream to obtain encoding information of the first node; and decoding and reconstructing, based on the encoding information of the first node, a coding unit corresponding to the first node, to obtain a picture corresponding to the picture data.

    PREDICTION MODE DETERMINING METHOD AND APPARATUS
    34.
    发明申请
    PREDICTION MODE DETERMINING METHOD AND APPARATUS 有权

    公开(公告)号：US20210337189A1

    公开(公告)日：2021-10-28

    申请号：US17369703

    申请日：2021-07-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Lian ZHANG

    IPC: H04N19/107 ,  H04N19/96 ,  H04N19/61 ,  H04N19/70 ,  H04N19/124

    Abstract: A prediction mode determining method and apparatus are described. A prediction mode status of a child node of a target node is determined based on an area and a split manner of the target node, where the prediction mode status includes intra prediction mode only and inter prediction mode only. Further, a prediction mode of the child node is determined based on the prediction mode status of the child node. In this way, a same prediction mode is used for all child nodes obtained by splitting the target node. This facilitates pipeline processing of hardware, increases a subsequent processing speed, and improves video coding efficiency.

    INTER PREDICTION METHOD AND APPARATUS
    35.
    发明申请
    INTER PREDICTION METHOD AND APPARATUS 有权

    公开(公告)号：US20210185328A1

    公开(公告)日：2021-06-17

    申请号：US17249189

    申请日：2021-02-23

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weiwei XU ,  Haitao YANG ,  Yin ZHAO

    IPC: H04N19/159 ,  H04N19/184 ,  H04N19/176

    Abstract: Inter prediction method and apparatus are disclosed to resolve problems in the conventional technology that prediction samples obtained in an inter prediction mode are spatially discontinuous, prediction efficiency is affected, and prediction residual energy is relatively high. The method includes: parsing a bitstream to obtain motion information of a to-be-processed picture block; performing motion compensation on the to-be-processed picture block based on the obtained motion information, to obtain a prediction block of the to-be-processed picture block, where the prediction block of the to-be-processed picture block includes a prediction value of a target sample; and performing weighting calculation on one or more reconstructed values of one or more reference samples and the prediction value of the target sample, to update the prediction value of the target sample, where the reference sample(s) have a preset spatial position relationship with the target sample.

    PICTURE DATA ENCODING METHOD AND APPARATUS AND PICTURE DATA DECODING METHOD AND APPARATUS
    36.
    发明申请
    PICTURE DATA ENCODING METHOD AND APPARATUS AND PICTURE DATA DECODING METHOD AND APPARATUS 有权

    公开(公告)号：US20210044837A1

    公开(公告)日：2021-02-11

    申请号：US16949362

    申请日：2020-10-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin ZHAO ,  Haitao YANG ,  Shan LIU

    IPC: H04N19/96 ,  H04N19/172 ,  H04N19/184

    Abstract: Embodiments of this application disclose a decoding method includes: obtaining a bitstream including picture data; parsing the bitstream to obtain node split mode information of a first-level coding tree and node split mode information of a second-level coding tree, if the split mode corresponding to the first node is no further splitting, parsing the bitstream to obtain encoding information of the first node; and decoding and reconstructing, based on the encoding information of the first node, a coding unit corresponding to the first node, to obtain a picture corresponding to the picture data.

    ENCODING AND DECODING METHOD AND ELECTRONIC DEVICE
    38.
    发明申请
    ENCODING AND DECODING METHOD AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20250142079A1

    公开(公告)日：2025-05-01

    申请号：US19010423

    申请日：2025-01-06

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jue MAO ,  Dequan YU ,  Sheng QIAN ,  Yin ZHAO

    IPC: H04N19/136 ,  H04N19/167 ,  H04N19/17 ,  H04N19/463

    Abstract: Embodiments of this application provide an encoding and a device. The encoding method includes: obtaining an image; generating feature maps of C channels based on the image, the feature maps including feature values of feature points; generating estimated information matrices of the C channels based on the feature maps of the C channels; grouping the C channels into N channel groups; for at least one target channel group in the N channel groups, determining, based on at least one feature value of at least one encoded feature point corresponding to the target channel group and an estimated information matrix corresponding to the target channel group, at least one probability distribution parameter of a to-be-encoded feature point corresponding to the target channel group; determining, based on the at least one probability distribution parameter, probability distribution of the to-be-encoded feature point; and encoding the to-be-encoded feature point based on the probability distribution.

    INTER PREDICTION METHOD AND APPARATUS
    39.
    发明申请
    INTER PREDICTION METHOD AND APPARATUS 有权

    公开(公告)号：US20250106405A1

    公开(公告)日：2025-03-27

    申请号：US18975891

    申请日：2024-12-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Weiwei XU ,  Haitao YANG ,  Yin ZHAO

    IPC: H04N19/159 ,  H04N19/176 ,  H04N19/184

    Abstract: Inter prediction method and apparatus are disclosed to resolve problems in the conventional technology that prediction samples obtained in an inter prediction mode are spatially discontinuous, prediction efficiency is affected, and prediction residual energy is relatively high. The method includes: parsing a bitstream to obtain motion information of a to-be-processed picture block; performing motion compensation on the to-be-processed picture block based on the obtained motion information, to obtain a prediction block of the to-be-processed picture block, where the prediction block of the to-be-processed picture block includes a prediction value of a target sample; and performing weighting calculation on one or more reconstructed values of one or more reference samples and the prediction value of the target sample, to update the prediction value of the target sample, where the reference sample(s) have a preset spatial position relationship with the target sample.

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