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    Coding Method, Device, and System
    92.
    发明申请
    Coding Method, Device, and System 有权

    公开(公告)号：US20210250590A1

    公开(公告)日：2021-08-12

    申请号：US17205340

    申请日：2021-03-18

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04N19/157 ,  H04N19/70 ,  H04N19/176 ,  H04N19/184 ,  H04N19/96

    Abstract: A decoding method for decoding an encoded picture which is partitioned into coding tree blocks which are further partitioned into coding blocks with different sizes, comprises parsing a first indication from the sequence parameter set (SPS)/picture parameter set (PPS)/slice header/tile header of a bit stream containing the encoded picture, determining the partition mode of the coding tree blocks, which are confined by block size restriction parameter and partition depth restriction parameter included in the SPS/PPS/slice header/tile header when the first indication is first value, or determining the partition mode of the multiple coding tree blocks, which are confined by default by block size restriction parameter and default partition depth restriction parameter when the first indication is second value or not presented in the SPS/PPS/slice header/tile header, and partitioning the coding tree blocks into the coding blocks according to the partition mode, and decoding the coding blocks.

    Encoder, decoder, computer program and computer program product for processing a frame of a video sequence
    94.
    发明授权
    Encoder, decoder, computer program and computer program product for processing a frame of a video sequence 有权

    公开(公告)号：US11039137B2

    公开(公告)日：2021-06-15

    申请号：US16730800

    申请日：2019-12-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhijie Zhao ,  Max Blaeser ,  Mathias Wien

    IPC: H04N19/119 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/91

    Abstract: The present invention provides an encoder for encoding a frame of a video sequence and a corresponding decoder. The encoder comprises a partitioner and an entropy coder. The partitioner is configured to receive a current block of the frame and obtain a list of candidate geometric partitioning (GP) lines. Each of the candidate GP lines is generated based on information of one or more candidate neighbor blocks of the current block. The partitioner is further configured to determine a final GP line that partitions the current block into two segments, select a GP line from the list of GP lines to obtain a selected GP line, and generate a GP parameter for the current block. The GP parameter includes offset information indicating an offset between the final GP line and the selected GP line. The entropy coder is configured to encode the GP parameter.

    Devices and methods for 3D video coding
    96.
    发明授权
    Devices and methods for 3D video coding 有权

    公开(公告)号：US11006147B2

    公开(公告)日：2021-05-11

    申请号：US16220699

    申请日：2018-12-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhijie Zhao ,  Jens Schneider ,  Johannes Sauer ,  Mathias Wien

    IPC: H04N19/597 ,  H04N19/176 ,  H04N13/161 ,  H04N13/128 ,  H04N13/111

    Abstract: An apparatus for decoding 3D video data is provided, the 3D video data comprising a plurality of texture frames and a plurality of associated depth maps, the apparatus comprising: a first texture decoder configured to decode a video coding block of a first texture frame associated with a first view; a first depth map decoder configured to decode a video coding block of a first depth map associated with the first texture frame; a depth map filter configured to generate an auxiliary depth map on the basis of the first depth map; a first view synthesis prediction unit configured to generate a predicted video coding block of a view synthesis predicted second texture frame associated with a second view on the basis of the video coding block of the first texture frame and the auxiliary depth map.

    Method and apparatus for intra prediction in video coding
    97.
    发明授权
    Method and apparatus for intra prediction in video coding 有权

    公开(公告)号：US10972725B2

    公开(公告)日：2021-04-06

    申请号：US17002741

    申请日：2020-08-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

    Abstract: A decoding method and a decoder for decoding a current block of a video is provided, wherein the decoding method comprises: determining a set of Most Probable Modes (MPMs) for the current block. When at least one condition is satisfied, the set of MPMs includes a Planar mode, 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 an 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.

    IMAGE PROCESSING DEVICE AND METHOD FOR PERFORMING EFFICIENT DEBLOCKING
    98.
    发明申请
    IMAGE PROCESSING DEVICE AND METHOD FOR PERFORMING EFFICIENT DEBLOCKING 有权

    公开(公告)号：US20210014498A1

    公开(公告)日：2021-01-14

    申请号：US17033905

    申请日：2020-09-27

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

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

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

    Abstract: A deblocking filter of an image processing device is provided. The deblocking filter is used in an image coding process, for deblocking a block edge between a first coding block and a second coding block of an image. The first block has SA samples perpendicular to the block edge by N samples parallel to the block edge, and the second block has SB samples perpendicular to the block edge by N samples parallel to the block edge. No more than IA samples of the first coding block are used as first filter input values, and no more than IB samples of the second coding block are used as second filter input values. No more than MA samples of the first coding block are modified as first filter output values, and no more than MB samples of the second coding block are modified as second filter output values.

    Limited memory access window for motion vector refinement
    99.
    发明申请
    Limited memory access window for motion vector refinement 审中-公开

    公开(公告)号：US20200236387A1

    公开(公告)日：2020-07-23

    申请号：US16843662

    申请日：2020-04-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04N19/513 ,  H04N19/57

    Abstract: The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the 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 and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.

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