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    Video Decoding Method, Video Coding Method, Apparatus, Device, and Storage Medium
    2.
    发明申请
    Video Decoding Method, Video Coding Method, Apparatus, Device, and Storage Medium 有权

    公开(公告)号：US20210344903A1

    公开(公告)日：2021-11-04

    申请号：US17370120

    申请日：2021-07-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lu Yu ,  Ye-Kui Wang ,  Hualong Yu ,  Yin Zhao ,  Yuqun Fan ,  Xiaoding Gao ,  Haitao Yang

    IPC: H04N19/105 ,  H04N19/46 ,  H04N19/184 ,  H04N19/172

    Abstract: A video encoding method, a video decoding method, an apparatus, a device, and a storage medium include parsing a first flag from the video bitstream when a video bitstream is allowed to be decoded by referencing a library picture corresponding to a library picture bitstream, using a value of a target parameter of the video bitstream as a value of a target parameter of the library picture bitstream referenced by the video bitstream when a value of the first flag is a first value, and reconstructing, based on the value of the target parameter of the library picture bitstream referenced by the video bitstream and the library picture bitstream referenced by the video bitstream to obtain the library picture corresponding to the library picture bitstream referenced by the video bitstream.

    Video Encoder, Video Decoder, and Corresponding Method
    5.
    发明申请
    Video Encoder, Video Decoder, and Corresponding Method 有权

    公开(公告)号：US20210337220A1

    公开(公告)日：2021-10-28

    申请号：US17366735

    申请日：2021-07-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lu Yu ,  Ye-Kui Wang ,  Yuqun Fan ,  Hualong Yu ,  Yin Zhao ,  Xiangyu Lin ,  Haitao Yang

    IPC: H04N19/184 ,  H04N19/172 ,  H04N19/136

    Abstract: A decoding method includes obtaining an identifier from a bitstream, where the identifier indicates a minimum decoding time interval k between library pictures that is allowed in the bitstream, obtaining, when parsing the bitstream, a decoding moment ti of a current decoded picture and a decoding moment tj of a first decoded picture that is closest to the current decoded picture and that references a new library picture when the current decoded picture is decoded by referencing a library picture, where the new library picture is a library picture that is not decoded or needs to be re-decoded when the first decoded picture is decoded, and determining a preset quantity of library pictures as candidate reference pictures of the current decoded picture based on a relationship between k and a difference between ti and tj.

    PICTURE ENCODING/DECODING METHOD AND RELATED APPARATUS
    8.
    发明申请
    PICTURE ENCODING/DECODING METHOD AND RELATED APPARATUS 有权

    公开(公告)号：US20220191476A1

    公开(公告)日：2022-06-16

    申请号：US17689724

    申请日：2022-03-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Lu Yu ,  Xuguang Zuo ,  Yin Zhao ,  Haitao Yang

    IPC: H04N19/105 ,  H04N19/503 ,  H04N19/142 ,  H04N19/172 ,  H04N19/58 ,  H04N19/159 ,  H04N19/184

    Abstract: A picture encoding/decoding method and a related apparatus are provided. The picture decoding method includes obtaining a current picture from a video, the current picture being segmented using random access points into multiple video segments supporting a random access function; selecting, from a knowledge base, K reference pictures of the current picture, wherein at least one reference picture in the knowledge base does not belong to a random access segment in which the current picture is located, the random access segment comprising a picture sequence arranged in a decoding order from a closest random access point before the current picture to a closest random access point after the current picture; and decoding the current picture according to the K reference pictures.

    Motion vector prediction method and device
    9.
    发明授权
    Motion vector prediction method and device 有权

    公开(公告)号：US11202077B2

    公开(公告)日：2021-12-14

    申请号：US16711718

    申请日：2019-12-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jue Mao ,  Lu Yu ,  Yin Zhao

    IPC: H04N19/139 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    Abstract: A motion vector prediction method and device, includes determining a motion vector type of the motion vector of the current block based on a reference frame type of the reference frame, obtaining a motion vector type of a first motion vector of at least one spatially adjacent prediction block of the current block when the at least one spatially adjacent prediction block is an inter-frame prediction block, and when the obtained motion vector type of the first motion vector is different from all motion vector types of motion vectors of the current block, determining a second motion vector of a spatially adjacent pixel block of the current block based on decoding information of the spatially adjacent pixel block, and using the second motion vector or a scaling value of the second motion vector as a candidate motion vector predictor of the current block.

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