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    ENCODER, DECODER AND CORRESPONDING METHODS USING INTERPOLATION FILTERING
    45.
    发明申请
    ENCODER, DECODER AND CORRESPONDING METHODS USING INTERPOLATION FILTERING 有权

    公开(公告)号：US20220239909A1

    公开(公告)日：2022-07-28

    申请号：US17712980

    申请日：2022-04-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Elena Alexandrovna ALSHINA ,  Semih ESENLIK ,  Anand Meher KOTRA ,  Biao WANG ,  Han GAO

    IPC: H04N19/117 ,  H04N19/80 ,  H04N19/132 ,  H04N19/30 ,  H04N19/184

    Abstract: A method for operating a two-dimensional (2D) separable interpolation filter for coding a video, wherein the two-dimensional separable interpolation filter comprises a first and a second one-dimensional (1D) interpolation filter and a temporal buffer of a predetermined buffer size, wherein the method comprises: obtaining filter coefficients for the first one-dimensional interpolation filter of the two-dimensional interpolation filter; comparing a sum of positive filter coefficients of the obtained filter coefficients with a threshold; and upon determining that the sum of positive filter coefficients is larger than the threshold, amending one or more of the filter coefficients to obtain amended filter coefficients, wherein the one or more filter coefficients are amended such that a sum of positive filter coefficients of the amended filter coefficients is not larger than the threshold; applying the amended filter coefficients to samples of the video to obtain a value of a fractional sample position of the video; re-scaling the value of the fractional sample position and storing the re-scaled value of the fractional sample position in the temporal buffer.

    ADAPTIVE FILTER STRENGTH SIGNALLING FOR GEOMETRIC PARTITION MODE
    48.
    发明申请
    ADAPTIVE FILTER STRENGTH SIGNALLING FOR GEOMETRIC PARTITION MODE 有权

    公开(公告)号：US20220116586A1

    公开(公告)日：2022-04-14

    申请号：US17557930

    申请日：2021-12-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Semih ESENLIK ,  Max BLAESER ,  Zhijie ZHAO ,  Han GAO ,  Biao WANG ,  Anand Meher KOTRA ,  Elena Alexandrovna ALSHINA

    IPC: H04N19/103 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/70 ,  H04N19/132

    Abstract: A method for coding implemented by a decoding device or an encoding device includes: obtaining a first prediction mode for a first sub-block, obtaining a second prediction mode for a second sub-block; obtaining a first prediction value for a sample in the current block according to the first prediction mode, obtaining a second prediction value for the sample in the current block according to the second prediction mode; obtaining a value of an indicator, the value of the indicator indicating a blending operation which is performed for the sample in the current block; and obtaining a combined prediction value for the sample in the current block, according to the value of the indictor, the first prediction value, and the second prediction value. The blending operation adaptively performs around a separation line dividing the current block into at least the first sub-block and the second sub-block.

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