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    Encoder, a decoder and corresponding methods using IBC merge list
    111.
    发明授权
    Encoder, a decoder and corresponding methods using IBC merge list 有权

    公开(公告)号：US11546626B2

    公开(公告)日：2023-01-03

    申请号：US16993597

    申请日：2020-08-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/513 ,  H04N19/176

    Abstract: The present disclosure provides methods and devices of construct a candidate merge list for Intra block copy (IBC) mode, the method comprising: inserting a block vector of a left neighboring block of a current block into an initial merge list, when the left neighboring block is available and the left neighboring block is using IBC mode; inserting a block vector of an above neighboring block of the current block into the initial merge list, when the above neighboring block is available, the above neighboring block is using IBC mode and the block vector of the above neighboring block is not same as the block vector of the left neighboring block; inserting a block vector of the last candidate in a history based motion vector predictor (HMVP) into the initial merge list; obtaining a block vector of the current block according to the initial merge list.

    Relation between partition constraint elements
    112.
    发明授权
    Relation between partition constraint elements 有权

    公开(公告)号：US11477494B2

    公开(公告)日：2022-10-18

    申请号：US17169175

    申请日：2021-02-05

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/96 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

    Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.

    Encoding method, decoding method, encoder, and decoder
    114.
    发明授权
    Encoding method, decoding method, encoder, and decoder 有权

    公开(公告)号：US11418783B2

    公开(公告)日：2022-08-16

    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 ,  H04N19/105 ,  H04N19/132 ,  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.

    Memory access window and padding for motion vector refinement
    118.
    发明授权
    Memory access window and padding for motion vector refinement 有权

    公开(公告)号：US11153595B2

    公开(公告)日：2021-10-19

    申请号：US16844901

    申请日：2020-04-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Semih Esenlik ,  Zhijie Zhao ,  Han Gao ,  Anand Meher Kotra

    IPC: H04N19/513 ,  H04N19/57 ,  H04N19/573

    Abstract: The present disclosure relates to motion vector determination using template matching. In particular, an initial motion vector and a template are obtained for a prediction block. Then a refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector. The template matching accesses integer sample positions within a predetermined window, the predetermined window including said search space and further integer sample positions accessible for the template matching, replaces at least one integer sample position located out of the window by at least one replacement value, each replacement value is based on at least one sample within said window, and uses the accessed integer sample position values as well as the at least one replacement value to perform the template matching.

    Apparatus and method for performing deblocking
    119.
    发明授权
    Apparatus and method for performing deblocking 有权

    公开(公告)号：US11140389B2

    公开(公告)日：2021-10-05

    申请号：US16994266

    申请日：2020-08-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/117 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132

    Abstract: Embodiments of the present invention relate to the field of picture processing. Especially, the embodiments are directed to improving the deblocking filter of an image coding device. During the deblocking, at most a number MA of sample values of the first coding block adjacent to the block edge are modified and at most a number MB of sample values of the second coding block adjacent to the block edge are modified; or at most a number MA of sample values of the second coding block adjacent to the block edge are modified and at most a number MB of sample values of the first coding block adjacent to the block edge are modified, MA≠MB.

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