知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

105 records (took 0.025 seconds)

    ENCODER, A DECODER AND CORRESPONDING METHODS OF CHROMA INTRA MODE DERIVATION
    23.
    发明申请
    ENCODER, A DECODER AND CORRESPONDING METHODS OF CHROMA INTRA MODE DERIVATION 有权

    公开(公告)号：US20220159263A1

    公开(公告)日：2022-05-19

    申请号：US17588854

    申请日：2022-01-31

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Biao WANG ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Han GAO ,  Elena Alexandrovna ALSHINA

    IPC: H04N19/132 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

    Abstract: A method of coding implemented by a decoding device, comprising obtaining a video bitstream; decoding the video bitstream to obtain an initial intra prediction mode value for chroma component of a current coding block; determining whether a ratio between a width for luma component of the current coding block and a width for chroma component of the current coding block is equal to a threshold or not; obtaining a mapped intra prediction mode value for chroma component of the current coding block according to a predefined mapping relationship and the initial intra prediction mode value, when it's determined that the ratio is equal to the threshold; obtaining a prediction sample value for chroma component of the current coding block according to the mapped intra prediction mode value.

    DMVR USING DECIMATED PREDICTION BLOCK
    24.
    发明申请
    DMVR USING DECIMATED PREDICTION BLOCK 有权

    公开(公告)号：US20210400259A1

    公开(公告)日：2021-12-23

    申请号：US17466129

    申请日：2021-09-03

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Sriram SETHURAMAN ,  Semih ESENLIK ,  Jeeva Raj A ,  Sagar KOTECHA

    IPC: H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/46 ,  H04N19/176

    Abstract: The present disclosure provides an inter prediction method, comprising the steps of obtaining an initial motion vector and a reference picture for bi-prediction; obtaining sets of candidate sample positions in the reference picture according to the initial motion vector and candidate motion vectors, wherein each candidate motion vector is derived by the initial motion vector and a respective motion vector offset, and wherein each set of candidate sample positions corresponds to each candidate motion vector; obtaining a respective set of sample positions from each set of candidate sample positions; computing a matching cost for each candidate motion vector within each set of sample positions; obtaining a refined motion vector based on the computed matching cost of each candidate motion vector; and obtaining prediction values for a current block based on the refined motion vector.

    ENCODING METHOD, DECODING METHOD, ENCODER, AND DECODER
    27.
    发明申请
    ENCODING METHOD, DECODING METHOD, ENCODER, AND DECODER 有权

    公开(公告)号：US20210211666A1

    公开(公告)日：2021-07-08

    申请号：US17212777

    申请日：2021-03-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Han GAO ,  Yin ZHAO ,  Semih ESENLIK

    IPC: H04N19/119 ,  H04N19/132 ,  H04N19/105 ,  H04N19/176

    Abstract: This application provides an example method for processing video or image data. The method includes obtaining a non-overlapped region. The method also includes obtaining a transform block (TB) corresponding to a coding block. The method further includes determining whether the TB cross a border of the non-overlapped region or not. The method also includes, if the TB cross a border of the non-overlapped region, splitting the TB to obtain at least two sub-TBs according to the border of the non-overlapped region.

    Method and Apparatus for Intra Prediction in Video Coding
    28.
    发明申请
    Method and Apparatus for Intra Prediction in Video Coding 有权

    公开(公告)号：US20210203927A1

    公开(公告)日：2021-07-01

    申请号：US17199929

    申请日：2021-03-12

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/11 ,  H04N19/176 ,  H04N19/436 ,  H04N19/593 ,  H04N19/70

    Abstract: A decoding method and a decoder for decoding a current block of a video frame is provided, wherein the decoding method comprises determining a list of Most Probable Modes (MPMs) for the current block. When at least one condition is satisfied, the list of MPMs includes a DC mode, a Vertical mode, a Horizontal mode, an intra prediction mode corresponding to a value of the Vertical mode with a first offset, and an intra prediction mode corresponding to the value of the Vertical mode with a second offset. The decoding method further includes obtaining a MPM flag and a MPM index for the current block from a bitstream of the video, and obtaining an intra prediction mode for the current block for reconstructing the current block.

    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING
    29.
    发明申请
    BOUNDARY BLOCK PARTITIONING IN VIDEO CODING 有权

    公开(公告)号：US20210136372A1

    公开(公告)日：2021-05-06

    申请号：US17144976

    申请日：2021-01-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Han GAO ,  Jianle CHEN ,  Semih ESENLIK ,  Zhijie ZHAO ,  Anand Meher KOTRA

    IPC: H04N19/119 ,  H04N19/192 ,  H04N19/96 ,  H04N19/176

    Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.

    PICTURE ENCODER, A PICTURE DECODER AND CORRESPONDING METHODS
    30.
    发明申请
    PICTURE ENCODER, A PICTURE DECODER AND CORRESPONDING METHODS 有权

    公开(公告)号：US20210127115A1

    公开(公告)日：2021-04-29

    申请号：US17142957

    申请日：2021-01-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Semih ESENLIK ,  Ivan KRASNOV

    IPC: H04N19/132 ,  H04N19/117 ,  H04N19/82 ,  H04N19/46 ,  H04N19/176

    Abstract: The present disclosure relates to adaptive filtering, e.g. adaptive loop filtering, which may be used during encoding and decoding of video pictures. In particular, the present disclosure provides for determining a zero coefficients map, in which each bit indicates whether or not a respective filter coefficient of a supporting region is to be included into the bitstream for an adaptive filter. An indication of the zero coefficients map is included into the bitstream before at least one filter coefficient of the adaptive filter indicated by the zero coefficients map as to be included into the bitstream. The provision of a zero coefficients map enables an efficient signaling and allows for flexible filter shapes that are particularly suitable for the content at hand.

Patent Agency Ranking