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    SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE
    3.
    发明公开
    SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE 审中-公开

    公开(公告)号：US20240364892A1

    公开(公告)日：2024-10-31

    申请号：US18767885

    申请日：2024-07-09

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Ha Hyun LEE ,  Jung Won KANG ,  Sung Chang LIM ,  Jin Ho LEE ,  Hui Yong KIM

    IPC: H04N19/132 ,  H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

    CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

    Abstract: Disclosed herein are a video encoding/decoding method and apparatus. The video decoding method of the present disclosure includes: obtaining block partitioning information of a current block; based on the block partitioning information, partitioning the current block into a first sub-block and a second sub-block; deriving motion information of the first sub-block and motion information of the second sub-block respectively; based on the motion information of the first sub-block and the motion information of the second sub-block, generating a prediction sample of the first sub-block and a prediction sample of the second sub-block respectively; and through a weighted-sum of the prediction sample of the first sub-block and the prediction sample of the second sub-block, generating a prediction sample of the current block. Herein, the block partitioning information is index information indicating an index of a table including information indicating a plurality of predefined asymmetric partition shapes.

    Directions for wide angle intra prediction
    7.
    发明授权
    Directions for wide angle intra prediction 有权

    公开(公告)号：US12132907B2

    公开(公告)日：2024-10-29

    申请号：US17280473

    申请日：2019-09-25

    Applicant: InterDigital Madison Patent Holdings, SAS

    Inventor： Gagan Rath ,  Fabien Racape ,  Fabrice Urban

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

    CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

    Abstract: Methods and apparatus for using wide-angle intra prediction for rectangular blocks enable greater prediction angles. Wide-angle intra prediction enables intra prediction direction angles beyond the conventional 45 and −135 degrees. In one embodiment, when a video block to be coded or decoded is non-square, additional intra prediction directions are enabled in the direction of the longer block edge and more reference samples are available along that edge. An index is used to indicate the prediction direction and can be adapted according to the additional intra predictions in the longer direction, with correspondingly fewer prediction directions along the shorter block edge. This preserves the number of prediction modes that need to be indexed but allows their angles to correspond to the shape of the block.

    METHODS AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM FOR SPATIAL RESAMPLING TOWARDS MACHINE VISION
    9.
    发明公开
    METHODS AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM FOR SPATIAL RESAMPLING TOWARDS MACHINE VISION 审中-公开

    公开(公告)号：US20240357118A1

    公开(公告)日：2024-10-24

    申请号：US18618551

    申请日：2024-03-27

    Applicant: Alibaba Innovation Private Limited

    Inventor： Shurun WANG ,  Yan YE

    IPC: H04N19/132 ,  H04N19/172 ,  H04N19/186 ,  H04N19/436

    CPC classification number: H04N19/132 ,  H04N19/172 ,  H04N19/186 ,  H04N19/436

    Abstract: A method of encoding a video sequence into a bitstream. The method includes receiving a video sequence; performing a plurality of convolutions on an input image data of the video sequence in YUV format; wherein performing the plurality of convolutions includes performing a first stage convolution on the input image data, wherein the first stage convolution comprises a first convolution and a second convolution that are provided in parallel; performing a second stage convolution on a channel-wise concatenation result of an output of the first convolution and an output of the second convolution; performing a third stage convolution on an output of the second stage convolution; and obtaining an output image data based on an output of the third stage convolution; and encoding the output image data for generating the bitstream.

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