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    ENCODING/DECODING VIDEO PICTURE DATA
    3.
    发明公开
    ENCODING/DECODING VIDEO PICTURE DATA 审中-实审

    公开(公告)号：EP4354870A1

    公开(公告)日：2024-04-17

    申请号：EP22306541.8

    申请日：2022-10-12

    申请人： Beijing Xiaomi Mobile Software Co., Ltd.

    发明人： LE LEANNEC, Fabrice ,  ANDRIVON, Pierre ,  RADOSAVLJEVIC, Milos ,  BLESTEL, Médéric

    IPC分类号： H04N19/55 ,  H04N19/577

    CPC分类号： H04N19/577 ,  H04N19/55

    摘要： The present application relates to bi-directional motion-compensated based predicting method of a block of a video picture. Two reference blocks in reference pictures in two distinct lists of reference pictures are determined for motion-compensation. The method determines if samples of a reference block is outside boundaries of a reference picture and in that case, determines a non-out-of-bound rectangular zone comprising at least one sample within said reference picture's boundaries and replaces said at least one sample that is outside the non-out-of-bound rectangular zone by corresponding samples of the other reference block which are within the other reference picture' boundaries.

    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD
    5.
    发明公开
    DECODING DEVICE AND DECODING METHOD, AND ENCODING DEVICE AND ENCODING METHOD 审中-公开

    公开(公告)号：EP3879825A3

    公开(公告)日：2022-07-13

    申请号：EP21167463.5

    申请日：2013-03-27

    申请人： Sony Group Corporation

    发明人： NAKAGAMI, Ohji ,  SAKURAI, Hironari ,  TAKAHASHI, Yoshitomo

    IPC分类号： H04N19/117 ,  H04N19/174 ,  H04N19/82 ,  H04N19/55

    摘要： The present technique relates to a decoding device and a decoding method, and an encoding device and an encoding method, capable of performing encoding and decoding independently in the time direction for each tile. A decoding unit generates a prediction image by performing, for each of tiles, motion compensation of a reference image within a co-located tile based on tile splittable information indicating that decoding is allowed for each of the tiles and motion vector information representing a motion vector used for generating encoded data of a decoding target current image when a picture of the current image is split into the tiles and decoded. The decoding unit decodes the encoded data using the prediction image. The present technique is applicable to a decoding device, for example.

    IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS
    10.
    发明公开
    IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3800891A1

    公开(公告)日：2021-04-07

    申请号：EP20209245.8

    申请日：2017-10-10

    申请人： Kim, Ki Baek

    发明人： Kim, Ki Baek

    IPC分类号： H04N19/52 ,  H04N19/55 ,  H04N19/597 ,  H04N19/103 ,  H04N19/176 ,  H04N19/129 ,  H04N19/124 ,  H04N19/13 ,  H04N19/119 ,  H04N19/11 ,  H04N19/134 ,  H04N19/51 ,  H04N19/70

    摘要： Disclosed is an image data encoding/decoding method and apparatus. A method for decoding a 360-degree image comprises the steps of: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, the step of generating the prediction image comprises the steps of: obtaining, from motion information included in the syntax information, a motion vector candidate group including a motion vector of a block adjacent to a current block to be decoded; deriving a prediction motion vector from the motion vector candidate group, on the basis of selection information extracted from the motion information; and determining a prediction block for the current block to be decoded, using a fmal motion vector derived by adding the prediction motion vector to a differential motion vector extracted from the motion information.