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    SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE
    71.
    发明公开
    SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE 审中-公开

    公开(公告)号：EP3989551A1

    公开(公告)日：2022-04-27

    申请号：EP20826878.9

    申请日：2020-06-16

    申请人： Electronics and Telecommunications Research Institute

    发明人： LEE, Ha Hyun ,  KANG, Jung Won ,  LIM, Sung Chang ,  LEE, Jin Ho ,  KIM, Hui Yong

    IPC分类号： H04N19/119 ,  H04N19/503 ,  H04N19/593 ,  H04N19/60 ,  H04N19/124 ,  H04N19/132 ,  H04N19/70

    摘要： Disclosed herein are a video encoding/decoding method and apparatus. The video decoding method of the present disclosure includes: obtaining block partitioning information of a current block; based on the block partitioning information, partitioning the current block into a first sub-block and a second sub-block; deriving motion information of the first sub-block and motion information of the second sub-block respectively; based on the motion information of the first sub-block and the motion information of the second sub-block, generating a prediction sample of the first sub-block and a prediction sample of the second sub-block respectively; and through a weighted-sum of the prediction sample of the first sub-block and the prediction sample of the second sub-block, generating a prediction sample of the current block. Herein, the block partitioning information is index information indicating an index of a table including information indicating a plurality of predefined asymmetric partition shapes.

    METHOD FOR IMAGE CODING/DECODING
    73.
    发明公开
    METHOD FOR IMAGE CODING/DECODING 审中-公开

    公开(公告)号：EP3968639A1

    公开(公告)日：2022-03-16

    申请号：EP21202076.2

    申请日：2013-01-18

    申请人： Electronics and Telecommunications Research Institute

    发明人： LIM, Sung Chang ,  KIM, Hui Yong ,  LEE, Jin Ho ,  CHOI, Jin Soo ,  KIM, Jin Woong

    IPC分类号： H04N19/52

    摘要： A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image.