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    ENCODER WHICH GENERATES PREDICTION IMAGE TO BE USED TO ENCODE CURRENT BLOCK
    2.
    发明公开
    ENCODER WHICH GENERATES PREDICTION IMAGE TO BE USED TO ENCODE CURRENT BLOCK 审中-公开

    公开(公告)号：US20240348775A1

    公开(公告)日：2024-10-17

    申请号：US18756664

    申请日：2024-06-27

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Tadamasa TOMA ,  Takahiro NISHI ,  Kiyofumi ABE ,  Yusuke KATO

    IPC: H04N19/105 ,  H04N19/176 ,  H04N19/182

    CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/182

    Abstract: An encoder includes circuitry and memory connected to the circuitry. The circuitry, in operation: derives, as a first parameter, a total sum of absolute values of sums of horizontal gradient values respectively for pairs of relative pixel positions; derives, as a second parameter, a total sum of absolute values of sums of vertical gradient values respectively for the pairs of relative pixel positions; derives, as a third parameter, a total sum of horizontal-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fourth parameter, a total sum of vertical-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fifth parameter, a total sum of vertical-related sums of horizontal gradient values respectively for the pairs of relative pixel positions; and generates a prediction image to be used to encode the current block using the first, second, third, fourth, and fifth parameters.

    IMAGE PROCESSING DEVICE AND METHOD
    3.
    发明公开
    IMAGE PROCESSING DEVICE AND METHOD 审中-公开

    公开(公告)号：US20240340411A1

    公开(公告)日：2024-10-10

    申请号：US18293375

    申请日：2022-03-07

    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION

    Inventor： TAKEFUMI NAGUMO ,  TAKUYA KITAMURA

    IPC: H04N19/11 ,  H04N19/124 ,  H04N19/182

    CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/182

    Abstract: The present disclosure relates to an image processing device and method capable of suppressing a drop in encoding efficiency. One of spatial prediction and phase prediction is set as a prediction method for a pixel to be processed in image data generated by a pixel array in which blocks, each including a plurality of pixels adjacent to each other, are arranged in a predetermined pattern. A prediction value for the pixel to be processed is then derived by applying the prediction method set, and a prediction residual obtained by subtracting the prediction value from each of pixel values in the image data is encoded. The present disclosure can be applied in, for example, an image processing device, an encoding device, a decoding device, an electronic device, an image processing method, a program, or the like.

    Encoder, decoder, encoding method, and decoding method
    6.
    发明授权
    Encoder, decoder, encoding method, and decoding method 有权

    公开(公告)号：US12108039B2

    公开(公告)日：2024-10-01

    申请号：US18451694

    申请日：2023-08-17

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Ryuichi Kanoh ,  Takahiro Nishi ,  Tadamasa Toma

    IPC: H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

    CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

    Abstract: An encoding method includes: changing values of luma pixels in a first block and a second block to filter a first boundary between the first block and the second block, using clipping such that change amounts of the respective values are within respective luma clip widths, the luma pixels in the first block and the second block being arranged along a first line across the first boundary; and changing values of chroma pixels in a third block and a fourth block to filter a second boundary between the third block and the fourth block, using clipping such that change amounts of the respective values are within respective chroma clip widths, the chroma pixels in the third block and the fourth block being arranged along a second line across the second boundary. The luma clip widths applied to the luma pixels are selected to be asymmetrical relative to the first boundary.

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