中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

145 records (took 0.019 seconds)

    Coding method, device, system with merge mode
    11.
    发明授权
    Coding method, device, system with merge mode 有权

    公开(公告)号：US11659175B2

    公开(公告)日：2023-05-23

    申请号：US17245037

    申请日：2021-04-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

    CPC classification number: H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

    Abstract: Methods, systems, and computer programs encoded on a computer storage medium for marking the availability of a potential candidate coding block for intra prediction mode estimation of a current coding block are provided. One example method includes obtaining a parent block of a current coding block (parentCurr), and a parent block of a candidate coding block (parentCand). The current coding block and the candidate coding block are each obtained by splitting of the parentCurr and the parentCand, respectively. In one aspect, the current coding block cannot use an intra prediction mode of a potential candidate coding block when parentCand and parentCurr are the same block, a function of a number of quadtree, ternary tree, and binary tree splitting operations is greater than a threshold minus 1, and a split mode of the parent block of the current coding block parentCurr is a ternary tree split.

    Devices and methods for image and video coding
    16.
    发明授权
    Devices and methods for image and video coding 有权

    公开(公告)号：US11516505B2

    公开(公告)日：2022-11-29

    申请号：US17170065

    申请日：2021-02-08

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    Abstract: The disclosure relates to a method of decoding implemented by a decoding device, comprising: obtaining a value of a reference line index for a current block; constructing a most probable mode, MPM, list for the current block; obtaining a value of intra-prediction mode index for the current block; when the value of the reference line index is not equal to 0, obtaining an intra prediction mode of the current block according to the MPM list for the current block and the value of the intra-prediction mode index for the current block, wherein the value of the intra-prediction mode index indicates a position that corresponds to the intra prediction mode of the current block among angular intra-prediction modes in the MPM list. The disclosure also relates to a coding apparatus and a non-transitory machine-readable medium.

    Encoder, a decoder and corresponding methods for inter-prediction
    17.
    发明授权
    Encoder, a decoder and corresponding methods for inter-prediction 有权

    公开(公告)号：US11336916B2

    公开(公告)日：2022-05-17

    申请号：US17317711

    申请日：2021-05-11

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/56 ,  H04N19/57 ,  H04N19/61

    Abstract: An inter-prediction method and apparatus are provided. An initial motion vector is obtained for a current block. Search space positions are determined according to the initial motion vector. Matching costs for the search space positions are checked according to a checking order to select a target search space position with a minimal matching cost. A refining motion vector of the current block is determined based on the initial motion vector and the target search space position. A central search space position is determined first according to the checking order, and the central search space position is pointed to by the initial motion vector.

    ENCODER, A DECODER AND CORRESPONDING METHODS USING AN ADAPTIVE LOOP FILTER
    19.
    发明申请
    ENCODER, A DECODER AND CORRESPONDING METHODS USING AN ADAPTIVE LOOP FILTER 有权

    公开(公告)号：US20210400267A1

    公开(公告)日：2021-12-23

    申请号：US17356047

    申请日：2021-06-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/117 ,  H04N19/176 ,  H04N19/82 ,  H04N19/96 ,  H04N19/186

    Abstract: A method of filtering a sample value of a picture is provided, with an integer t that is less than k and with an integer j in the range of 1 to m: generating, with an integer i in the range of 1 to k−t−1, a filtered sample value by applying a filter to the value of the sample p(i,j), wherein the filter is supported by a set of filter support samples, the set of filter support samples does not comprise any samples p(i′,j′) with row index i′ greater than k−t−1, and/or generating, with an integer i in the range of k−t to k, a filtered sample value by applying a filter to the value of the sample p(i,j), the filter is supported by a set of filter support samples, wherein the set of filter support samples does not comprise any samples p(i′,j′) with row index i′ less than k−t.

    DEBLOCKING FILTER FOR SUB-PARTITION BOUNDARIES CAUSED BY INTRA SUB-PARTITION CODING TOOL
    20.
    发明申请
    DEBLOCKING FILTER FOR SUB-PARTITION BOUNDARIES CAUSED BY INTRA SUB-PARTITION CODING TOOL 有权

    公开(公告)号：US20210377570A1

    公开(公告)日：2021-12-02

    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 ,  H04N19/176 ,  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.

Patent Agency Ranking