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    ENCODER, A DECODER AND CORRESPONDING METHODS FOR INTER-PREDICTION
    42.
    发明申请
    ENCODER, A DECODER AND CORRESPONDING METHODS FOR INTER-PREDICTION 有权

    公开(公告)号：US20220303573A1

    公开(公告)日：2022-09-22

    申请号：US17713223

    申请日：2022-04-04

    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: A non-transitory computer-readable medium for inter-prediction and an encoder 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 according to the checking order, and the central search space position is pointed to by the initial motion vector.

    Boundary block partitioning in video coding
    43.
    发明授权
    Boundary block partitioning in video coding 有权

    公开(公告)号：US11425375B2

    公开(公告)日：2022-08-23

    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 ,  H04N19/176 ,  H04N19/192 ,  H04N19/96

    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.

    Coding Method and Apparatus
    44.
    发明申请
    Coding Method and Apparatus 有权

    公开(公告)号：US20220264134A1

    公开(公告)日：2022-08-18

    申请号：US17732205

    申请日：2022-04-28

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yin Zhao ,  Haitao Yang ,  Jianle Chen

    IPC: H04N19/44 ,  H04N19/12 ,  H04N19/176 ,  H04N19/61 ,  H04N19/625 ,  H04N19/124 ,  H04N19/184 ,  H04N19/51

    Abstract: A video decoding method, including: parsing a received bitstream to obtain prediction information of a coding unit (CU); obtaining a target transform mode of a residual transform unit (TU); parsing the received bitstream to obtain transform coefficients of the residual TU; applying an inverse quantization to the transform coefficients of the residual TU to obtain dequantized coefficients; applying, based on the target transform mode, an inverse transform to the dequantized coefficients to obtain a residual block of the residual TU; obtaining a prediction block of the CU based on the prediction information; obtaining a video block based on the residual block and the prediction block; and outputting a video sequence including a video frame that includes the video block.

    Signaling of Non-Picture-Level Syntax Elements at the Picture Level
    48.
    发明申请
    Signaling of Non-Picture-Level Syntax Elements at the Picture Level 有权

    公开(公告)号：US20220217380A1

    公开(公告)日：2022-07-07

    申请号：US17701011

    申请日：2022-03-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： FNU Hendry ,  Ye-Kui Wang ,  Jianle Chen

    IPC: H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/172

    Abstract: A method comprises: receiving, by a video decoder, a video bitstream comprising an RPL flag, wherein the RPL flag equal to a first value specifies that RPL signaling is present in a PH, and wherein the RPL flag equal to a second value specifies that RPL signaling is not present in the PH and may be present in slice headers; and decoding, by the video decoder using the RPL flag, a coded picture to obtain a decoded picture. A comprises: receiving, by a video decoder, a video bitstream comprising an SAO flag, wherein the SAO flag specifies that SAO information may be present or is not present in a PH or specifies that the SAO information may be present or is not present in slice headers; and decoding, by the video decoder using the SAO flag, a coded picture to obtain a decoded picture.

    Slicing And Tiling In Video Coding
    49.
    发明申请
    Slicing And Tiling In Video Coding 有权

    公开(公告)号：US20220159313A1

    公开(公告)日：2022-05-19

    申请号：US17665263

    申请日：2022-02-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ye-Kui Wang ,  FNU Hendry ,  Jianle Chen

    IPC: H04N19/96 ,  H04N19/184 ,  H04N19/70 ,  H04N19/119 ,  H04N19/174 ,  H04N19/176 ,  H04N19/169 ,  H04N19/46

    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving at a decoder, a bitstream including a video coding layer (VCL) network abstraction layer (NAL) unit containing a slice of image data divided into a plurality of tiles. A number of the tiles in the VCL NAL unit are determined. A number of entry point offsets for the tiles is also determined as one less than the number of the tiles in the VCL NAL unit. Each entry point offset indicates a starting location of a corresponding tile in the VCL NAL unit. The number of entry point offsets is not explicitly signaled in the bitstream. The entry point offsets for the tiles are obtained based on the number of entry point offsets. The tiles are decoded at the entry point offsets to generate a reconstructed image.

    ALF APS CONSTRAINTS IN VIDEO CODING
    50.
    发明申请
    ALF APS CONSTRAINTS IN VIDEO CODING 有权

    公开(公告)号：US20220159285A1

    公开(公告)日：2022-05-19

    申请号：US17666307

    申请日：2022-02-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianle Chen ,  FNU Hendry

    IPC: H04N19/46 ,  H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  H04N19/169

    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising an adaptive loop filter (ALF) adaptation parameter set (APS) including an ALF luma filter signal flag (alf_luma_filter_signal_flag) and a ALF chroma filter signal flag (alf_chroma_filter_signal_flag), wherein at least one of the alf_luma_filter_signal_flag or the alf_chroma_filter_signal_flag is equal to one. A slice is decoded based on ALF parameters in the ALF APS. The slice is forwarded for display as part of a decoded video sequence.

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