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    METHOD AND APPARATUS FOR INTRA PREDICTION
    3.
    发明公开
    METHOD AND APPARATUS FOR INTRA PREDICTION 审中-实审

    公开(公告)号：EP4346211A3

    公开(公告)日：2024-06-19

    申请号：EP24158346.7

    申请日：2019-09-03

    申请人： Huawei Technologies Co., Ltd.

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

    IPC分类号： H04N19/463 ,  H04N19/593

    CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/436 ,  H04N19/70 ,  H04N19/463

    摘要： A decoding method and a decoder for decoding a current block of a video is provided, wherein the decoding method comprises: obtaining a value of a Most Probable Modes, MPM, flag for the current block from a bitstream; obtaining an MPM index for the current block from the bitstream, when the value of the MPM flag indicates that an intra prediction mode for the current block is an intra prediction mode comprised in an MPM set of intra prediction modes; obtaining a value of an intra prediction mode for the current block, based on the MPM index and the MPM set for the current block; wherein when an intra prediction mode of a left neighboring block of the current block is a Planar mode, and an intra prediction mode of an above neighboring block of the current block is a Planar mode, the MPM set of prediction modes comprises: a Planar mode, a DC mode, a Vertical mode, a Horizontal mode, an intra prediction mode corresponding to the Vertical mode with a first offset, and an intra prediction mode corresponding to the Vertical mode with a second offset.

    AN IMAGE PROCESSING DEVICE AND METHOD FOR PERFORMING EFFICIENT DEBLOCKING
    7.
    发明公开
    AN IMAGE PROCESSING DEVICE AND METHOD FOR PERFORMING EFFICIENT DEBLOCKING 审中-公开

    公开(公告)号：EP4171030A1

    公开(公告)日：2023-04-26

    申请号：EP22214451.1

    申请日：2018-03-28

    申请人： Huawei Technologies Co., Ltd.

    发明人： KOTRA, Anand Meher ,  ESENLIK, Semih ,  ZHAO, Zhijie ,  GAO, Han

    IPC分类号： H04N19/117 ,  H04N19/82 ,  H04N19/86 ,  H04N19/42 ,  H04N19/176

    摘要： The present invention relates to the field of picture processing. Especially, the invention deals with improving the deblocking filter of an image processing device. To this end, the present invention presents an image processing device intended for use in an image encoder and/or an image decoder, for deblocking a block edge between a first coding block and a second coding block of an image encoded with a block code is provided. The first block has a block size S A , while the second block has a block size S B . The device comprises a filter for filtering the block edge, configured to
    - modify at most a number M A of sample values of the first coding block, as first filter output values,
    - modify at most a number M B of sample values of the second coding block, as second filter output values,
    - use at most a number I A of sample values of the first coding block, as first filter input values,
    - use at most a number I B of sample values of the second coding block, as second filter input values.
    Therein I A ≠ I B and M A ≠ M B .