知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

431 records (took 0.023 seconds)

    Deblocking filter for sub-partition boundaries caused by intra sub-partition coding tool
    191.
    发明授权
    Deblocking filter for sub-partition boundaries caused by intra sub-partition coding tool 有权

    公开(公告)号：US11856228B2

    公开(公告)日：2023-12-26

    申请号：US17399203

    申请日：2021-08-11

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Biao Wang ,  Anand Meher Kotra ,  Semih Esenlik ,  Han Gao ,  Jianle Chen

    IPC: H04N19/66 ,  H04N19/80 ,  H04N19/176 ,  H04N19/593

    CPC classification number: H04N19/66 ,  H04N19/176 ,  H04N19/593 ,  H04N19/80

    Abstract: A deblocking method is provided for deblocking a sub-partition boundary within a coding block during image encoding and/or image decoding process. The coding block is coded in an intra prediction mode and the coding block is partitioned into sub-partitions comprising a first sub-partition and a second sub-partition that is adjacent to the first sub-partition. The method comprises: determining a maximum filter length to be 1 for a first/second sub-partition when a width of the first or second sub-partition is 4 samples, or when a height of the first or second sub-partition is 4 samples; modifying a value of up to one sample of the first or second sub-partition, wherein the value of the up to one sample is obtained from a row or a column of the first or second sub-partition that is perpendicular to and adjacent to the sub-partitions boundary between the first sub-partition and the second sub-partition.

    Bidirectional inter prediction method and apparatus
    192.
    发明授权
    Bidirectional inter prediction method and apparatus 有权

    公开(公告)号：US11838535B2

    公开(公告)日：2023-12-05

    申请号：US17827361

    申请日：2022-05-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen

    IPC: H04N19/577 ,  H04N19/513 ,  H04N19/176 ,  H04N19/70

    CPC classification number: H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

    Abstract: Embodiments of this application relate to the field of video picture coding technologies, and disclose a bidirectional inter prediction method and apparatus, to improve coding efficiency. The method includes: obtaining a first motion vector difference of a current picture block; determining a second motion vector difference of the current picture block based on the first motion vector difference, where the first motion vector difference belongs to motion information of the current picture block in a first direction, and the second motion vector difference belongs to motion information of the current picture block in a second direction; and determining prediction samples of the current picture block based on the obtained first motion vector difference and the determined second motion vector difference.

    MOTION VECTOR PREDICTION METHOD AND RELATED APPARATUS
    194.
    发明公开
    MOTION VECTOR PREDICTION METHOD AND RELATED APPARATUS 审中-公开

    公开(公告)号：US20230370607A1

    公开(公告)日：2023-11-16

    申请号：US18318731

    申请日：2023-05-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Jiali Fu

    IPC: H04N19/139 ,  H04N19/119 ,  H04N19/176 ,  H04N19/61

    CPC classification number: H04N19/139 ,  H04N19/119 ,  H04N19/176 ,  H04N19/61

    Abstract: A motion vector prediction method includes parsing a bitstream to obtain an index value of a candidate motion vector list and constructing the candidate motion vector list that includes. candidate motion vectors of K control points of a current block. The candidate motion vectors of K control points are obtained based on a 2N-parameter affine transform model used for a neighboring block of the current block, where N and K are integers greater than or equal to 2 and less than or equal to 4 with N not being equal to K. The method further includes determining, in the candidate motion vector list, target candidate motion vectors of the K control points based on the index value and obtaining a predicted motion vector of each subblock of the current block based on the target candidate motion vectors of the K control points.

    MOTION VECTOR PREDICTION METHOD AND RELATED APPARATUS
    195.
    发明公开
    MOTION VECTOR PREDICTION METHOD AND RELATED APPARATUS 审中-公开

    公开(公告)号：US20230370606A1

    公开(公告)日：2023-11-16

    申请号：US18318730

    申请日：2023-05-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huanbang Chen ,  Haitao Yang ,  Jianle Chen ,  Jiali Fu

    IPC: H04N19/139 ,  H04N19/176 ,  H04N19/61 ,  H04N19/119

    CPC classification number: H04N19/139 ,  H04N19/119 ,  H04N19/176 ,  H04N19/61

    Abstract: A motion vector prediction method includes parsing a bitstream to obtain an index value of a candidate motion vector list and constructing the candidate motion vector list that includes. candidate motion vectors of K control points of a current block. The candidate motion vectors of K control points are obtained based on a 2N-parameter affine transform model used for a neighboring block of the current block, where N and K are integers greater than or equal to 2 and less than or equal to 4 with N not being equal to K. The method further includes determining, in the candidate motion vector list, target candidate motion vectors of the K control points based on the index value and obtaining a predicted motion vector of each subblock of the current block based on the target candidate motion vectors of the K control points.

    Video picture prediction method and apparatus
    200.
    发明授权
    Video picture prediction method and apparatus 有权

    公开(公告)号：US11736715B2

    公开(公告)日：2023-08-22

    申请号：US17858567

    申请日：2022-07-06

    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 video picture prediction methods and apparatuses. In an implementation, a method for encoding of video picture comprises generating a bitstream for video signals, the bitstream comprises a plurality of syntax elements, wherein the plurality of syntax elements comprises a first identifier indicating that an affine motion model based motion compensation is enabled for a video sequence including a picture block to be processed, wherein a second identifier is conditionally signaled at least based on a value of the first identifier, wherein a false value of the second identifier indicates that a 6-parameter affine motion model based motion compensation is disabled for the video sequence, and wherein a true value of the second identifier indicates that the 6-parameter affine motion model based motion compensation is enabled for the video sequence.

Patent Agency Ranking