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    ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD
    1.
    发明申请
    ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD 有权

    公开(公告)号：US20250047899A1

    公开(公告)日：2025-02-06

    申请号：US18921409

    申请日：2024-10-21

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Kiyofumi Abe ,  Takahiro Nishi ,  Tadamasa Toma

    IPC: H04N19/52 ,  H04N19/176 ,  H04N19/186

    Abstract: An encoder includes circuitry and memory connected to the circuitry. In operation, the circuitry: stores MV information and correction processing information into a FIFO buffer for an HMVP mode in association, the MV information being derived for a processed block and correction processing information being related to correction processing of a prediction image of the processed block; registers, in a prediction candidate list for a merge mode, one or more prediction candidates each being a combination of MV information and correction processing information, the prediction candidates including a prediction candidate which is a combination of the motion vector information and the correction processing information stored in the FIFO buffer; and selects a prediction candidate from the prediction candidate list when a current block is to be processed in the merge mode, and performs correction processing of a prediction image of the current block, based on the correction processing information.

    DECODING METHOD, ENCODING METHOD, DECODER, AND, ENCODER
    5.
    发明申请
    DECODING METHOD, ENCODING METHOD, DECODER, AND, ENCODER 有权

    公开(公告)号：US20250024036A1

    公开(公告)日：2025-01-16

    申请号：US18903251

    申请日：2024-10-01

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Virginie DRUGEON ,  Kiyofumi Abe ,  Takahiro Nishi ,  Tadamasa Toma

    IPC: H04N19/119 ,  H04N19/159 ,  H04N19/176

    Abstract: A decoding method is a decoding method of decoding a current block of a video from a bitstream. The decoding method includes: decoding, from the bitstream, a prediction mode indicator indicating whether bi/uni mixed prediction is to be performed for the current block; decoding, from the bitstream, two instances of motion information for the current block; and when the prediction mode indicator indicates that the bi/uni mixed prediction is to be performed for the current block, (i) for a first partition, performing first prediction using one of the two instances, the first partition being part of the current block, the first prediction being uni-prediction, and (ii) for a second partition, performing second prediction using both of the two instances, the second partition being part of the current block, the second prediction being bi-prediction.

    Encoder, decoder, encoding method, and decoding method
    7.
    发明授权
    Encoder, decoder, encoding method, and decoding method 有权

    公开(公告)号：US12200234B2

    公开(公告)日：2025-01-14

    申请号：US18515944

    申请日：2023-11-21

    Applicant: Panasonic Intellectual Property Corporation of America

    Inventor： Takahiro Nishi ,  Tadamasa Toma ,  Kiyofumi Abe ,  Ryuichi Kanoh

    IPC: H04N19/31 ,  H04N19/117 ,  H04N19/172

    Abstract: An encoder which encodes a video including a plurality of pictures includes circuitry and memory. Using the memory, the circuitry performs: encoding a first picture among the plurality of pictures; and performing (i) a first operation for encoding a parameter set for a second picture which follows the first picture in coding order among the plurality of pictures after encoding the first picture, and encoding the second picture after encoding the parameter set, or (ii) a second operation for encoding the second picture without encoding the parameter set after encoding the first picture. The circuitry performs the first operation when the second picture is a determined picture, in the performing of the first operation or the second operation.

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