METHOD AND DEVICE FOR CODING/DECODING IMAGE SIGNALS Russian patent published in 2023 - IPC H04N19/513 H04N19/176 

FIELD: video encoding.

SUBSTANCE: list of merge candidates for the current block is generated. One of the plurality of merger candidates included in the list is indicated. The first affine source vector and the second affine source vector of the current block are obtained based on the first affine source vector and the second affine source vector of the specified merge candidate. An affine vector is obtained for a subblock in the current block by using the first affine source vector and the second affine source vector of the current block. Motion-compensated prediction is performed for the subblock based on the affine vector. The first and second affine merge candidate source vectors are obtained based on the motion information of a neighbouring block adjacent to the current block. When a neighbouring block is included in a code tree element different from the current block's code tree element, the first and second affine merge candidate source vectors are obtained based on the motion vectors of the bottom left subblock and bottom right subblock of the neighbouring block.

EFFECT: increased efficiency of video coding.

17 cl, 35 dwg, 18 tbl