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    SEARCH REGION FOR MOTION VECTOR REFINEMENT
    61.
    发明申请
    SEARCH REGION FOR MOTION VECTOR REFINEMENT 有权

    公开(公告)号：US20210314604A1

    公开(公告)日：2021-10-07

    申请号：US17349557

    申请日：2021-06-16

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/56 ,  H04N19/513 ,  H04N19/55

    Abstract: The embodiments disclosed herein relate to the construction of a search space for determining a motion vector for a current block of a picture in a video sequence. The search space construction is split into in two main stages, wherein a first and a second partial search space are respectively determined. Based on an initial estimate of a motion vector, a first search space is first constructed. A first and a second candidate motion of the first search space are identified according to a cost function. Based on the first and the second candidate motion vectors, a second search space is constructed. The motion vector for the current block is selected from the candidate motion vectors of the first search space and the second search space.

    ENCODER, A DECODER AND CORRESPONDING METHODS FOR MERGE MODE
    62.
    发明申请
    ENCODER, A DECODER AND CORRESPONDING METHODS FOR MERGE MODE 有权

    公开(公告)号：US20210274168A1

    公开(公告)日：2021-09-02

    申请号：US17324401

    申请日：2021-05-19

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Timofey Mikhailovich SOLOVYEV ,  Semih ESENLIK ,  Jianle CHEN ,  Anand Meher KOTRA ,  Biao WANG ,  Han GAO

    IPC: H04N19/107 ,  H04N19/119 ,  H04N19/176

    Abstract: The present disclosure provides methods and devices of processing a block according to a merge candidate list, the method comprising: constructing a first list according to motion information of neighboring blocks of a current block; obtaining prediction information of the current block; when the prediction information of the current block indicates that a sub-block prediction is applied to the current block, obtaining a uni-prediction candidate for the current block according to the first list; using, the uni-prediction candidate for the current block to perform inter prediction of the current block. According to embodiment of the present disclosure, the regular merge list can be directly used and there is no need to explicitly generate the uni-prediction merge candidate list for sub-block prediction.

    METHOD AND APPARATUS FOR INTRA PREDICTION
    64.
    发明申请
    METHOD AND APPARATUS FOR INTRA PREDICTION 审中-公开

    公开(公告)号：US20200382768A1

    公开(公告)日：2020-12-03

    申请号：US16947840

    申请日：2020-08-19

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/169

    Abstract: A method for constructing a most probable mode (MPM) list for prediction process corresponding to video block is provided. The method includes determining whether a left block of a current coding block is available, in response to determining that the left block of the current coding block is available, adding an intra prediction mode of the left block into an MPM list; determining whether an above block of the current coding block is available, in response to determining that the above block of the current coding block is available, adding an intra prediction mode of the above block into the MPM list; adding an offset to the prediction mode of the left block to obtain a new prediction mode; and adding the above-offset prediction mode into the MPM list when the above-offset prediction mode is not in the MPM list. The MPM list is used to improve coding efficiency.

    DEVICES AND METHODS FOR IMAGE AND VIDEO CODING
    66.
    发明申请
    DEVICES AND METHODS FOR IMAGE AND VIDEO CODING 审中-公开

    公开(公告)号：US20200236351A1

    公开(公告)日：2020-07-23

    申请号：US16844740

    申请日：2020-04-09

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/109 ,  H04N19/61 ,  H04N19/503 ,  H04N19/176

    Abstract: An apparatus is configured to determine an adopted intra prediction mode on the basis of a most probable modes list, a selected modes list and a non-selected modes list having a first portion and a second portion, wherein the adopted intra prediction mode is one of a plurality of intra prediction modes comprising a plurality of angular intra prediction modes for predicting sample values of a current picture block. The apparatus includes a processor configured to generate the first portion of the non-selected modes list by including one or more angular intra prediction modes determined to be close to a respective angular intra prediction mode of the most probable modes list and the selected modes list. The processor is further configured to determine the adopted intra prediction mode.

    APPARATUS AND METHOD FOR DE-BLOCKING FILTERING
    67.
    发明申请
    APPARATUS AND METHOD FOR DE-BLOCKING FILTERING 审中-公开

    公开(公告)号：US20190356930A1

    公开(公告)日：2019-11-21

    申请号：US16531898

    申请日：2019-08-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Anand Meher KOTRA ,  Semih ESENLIK ,  Zhijie ZHAO

    IPC: H04N19/86 ,  H04N19/117 ,  H04N19/176 ,  H04N19/82

    Abstract: A system and method for processing a video stream are provided. When coding or decoding a video stream a de-blocking filtering may be applied for reducing discontinuities caused by use of a block-based video coding. The de-blocking filtering is performed using a filter grid. The size of the filter grid is chosen adaptively based on the processing parameters. The adaptive size of the filtering grid is determined based on the number of samples used and modified in de-blocking filtering of an edge of a coding block. The filtering grid may be used both for vertical and horizontal edge filtering.

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