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    CHROMA BLOCK PREDICTION METHOD AND DEVICE
    211.
    发明公开
    CHROMA BLOCK PREDICTION METHOD AND DEVICE 审中-公开

    公开(公告)号：US20240251092A1

    公开(公告)日：2024-07-25

    申请号：US18624894

    申请日：2024-04-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiang Ma ,  Haitao Yang ,  Jianle Chen

    IPC: H04N19/186 ,  H04N19/176

    CPC classification number: H04N19/186 ,  H04N19/176

    Abstract: The present disclosure provides a chroma block prediction method and a device. The method includes: parsing a bitstream to obtain first indication information; downsampling a first luma block by a first filter when a value of the first indication information is a first value or by using a second filter when a value of the first indication information is a second value, to obtain a second luma block; obtaining a plurality of chroma samples and a plurality of luma samples; obtaining linear model coefficients based on the plurality of chroma samples and the plurality of luma samples; and obtaining a prediction value of the current chroma block based on the second luma block and the linear model coefficients.

    Video picture prediction method and apparatus
    212.
    发明授权
    Video picture prediction method and apparatus 有权

    公开(公告)号：US12047559B2

    公开(公告)日：2024-07-23

    申请号：US17740591

    申请日：2022-05-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang Chen ,  Haitao Yang

    IPC: H04N7/12 ,  G06T9/40 ,  H04N19/105 ,  H04N19/127 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    CPC classification number: H04N19/105 ,  G06T9/40 ,  H04N19/127 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    Abstract: A video picture prediction method and apparatus are provided, to provide a manner of determining a maximum length of a candidate motion vector list corresponding to a subblock merge mode. The method comprises: parsing a first indicator from a bitstream; if the first indicator indicates that a candidate mode used to inter predict the to-be-processed block comprises an affine mode, parsing a second indicator from the bitstream, where the second indicator is used to indicate a maximum length of a first candidate motion vector list, and the first candidate motion vector list is constructed for the to-be-processed block, a subblock merge prediction mode is used for the to-be-processed block; and determining the maximum length of the first candidate motion vector list based on the second indicator.

    DATA PROCESSING METHOD AND SYSTEM, AND ELECTRONIC DEVICE
    215.
    发明公开
    DATA PROCESSING METHOD AND SYSTEM, AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20240144537A1

    公开(公告)日：2024-05-02

    申请号：US18410778

    申请日：2024-01-11

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiang Ma ,  Haitao Yang ,  YiZhi Deng

    IPC: G06T9/00 ,  G06T3/40 ,  G06T7/11

    CPC classification number: G06T9/00 ,  G06T3/40 ,  G06T7/11

    Abstract: Embodiments of this application provide a data processing method and system, and an electronic device. The method includes: Before an encoder encodes an image rendered by a graphics processing unit, the graphics processing unit obtains rendering information related to rendered image, compresses the rendering information, and transmits compressed rendering information. Then the encoder may perform encoding optimization based on the compressed rendering information in a process of encoding the rendered image. In this way, a data amount of the rendering information can be reduced, and a transmission delay of the rendering information can be reduced. In addition, the encoder performs encoding after receiving the rendering information. Therefore, in this embodiment of this application, duration of waiting for encoding by the encoder can be reduced, thereby reducing a transmission delay in an entire cloud rendering process.

    Feature Data Encoding and Decoding Method and Apparatus
    217.
    发明公开
    Feature Data Encoding and Decoding Method and Apparatus 审中-公开

    公开(公告)号：US20240105193A1

    公开(公告)日：2024-03-28

    申请号：US18526406

    申请日：2023-12-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jue Mao ,  Yin Zhao ,  Ning Yan ,  Haitao Yang ,  Lian Zhang ,  Jing Wang ,  Yibo Shi

    IPC: G10L19/08

    CPC classification number: G10L19/08

    Abstract: This application provides picture or audio encoding and decoding methods and apparatuses, and relates to the field of artificial intelligence (AI)—based picture or audio encoding and decoding technologies, and specifically, to the field of neural network-based picture feature map or audio feature variable encoding and decoding technologies. The encoding method includes: obtaining a to-be-encoded target, where the to-be-encoded target includes a plurality of feature elements, and the plurality of feature elements include a first feature element. The method further includes: obtaining a probability estimation result of the first feature element; determining, based on the probability estimation result of the first feature element, whether to perform entropy encoding on the first feature element; and performing entropy encoding on the first feature element only when it is determined that entropy encoding needs to be performed on the first feature element.

    Chroma block prediction method and apparatus
    218.
    发明授权
    Chroma block prediction method and apparatus 有权

    公开(公告)号：US11943451B2

    公开(公告)日：2024-03-26

    申请号：US17365372

    申请日：2021-07-01

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiang Ma ,  Fan Mu ,  Yin Zhao ,  Haitao Yang

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

    CPC classification number: H04N19/159 ,  H04N19/132 ,  H04N19/176

    Abstract: This application provides a chroma block prediction method and apparatus. The method includes: obtaining chroma values of chroma samples; obtaining, luma values of luma samples corresponding to the chroma samples; obtaining, from the luma values, a first luma set and a second luma set; grouping the chroma values into a first chroma set and a second chroma set; determining a scaling coefficient in a linear model based on an average value of luma values in the first luma set, an average value of luma values in the second luma set, an average value of chroma values in the first chroma set, and an average value of chroma values in the second chroma set; determining, based on the scaling coefficient, an offset factor in the linear model; and determining prediction information of the chroma block based on the scaling coefficient and the offset factor.

    Non-separable transform method and device
    219.
    发明授权
    Non-separable transform method and device 有权

    公开(公告)号：US11917203B2

    公开(公告)日：2024-02-27

    申请号：US17561184

    申请日：2021-12-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yin Zhao ,  Haitao Yang

    IPC: H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186

    CPC classification number: H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186

    Abstract: A method includes parsing a transform coefficient of a transform block in a current coding unit to obtain a first transform coefficient matrix. The method also includes obtaining a quantity K of non-zero transform coefficients in a top-left preset region of the first transform coefficient matrix. The method also includes parsing an index value based on the quantity K being greater than a threshold. The method also includes determining a transform matrix based on the index value. The method also includes multiplying N transform coefficients of the first transform coefficient matrix by the transform matrix to obtain M transform coefficients. The method also includes updating the first transform coefficient matrix by using the M transform coefficients to obtain a second transform coefficient matrix. The method also includes performing an inverse transform on the second transform coefficient matrix to obtain residual samples of the current coding unit.

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