METHOD AND DEVICE FOR IMAGE DECODING BASED ON AFFINE MOTION PREDICTION USING AFFINE MVP CANDIDATE LIST IN IMAGE CODING SYSTEM Russian patent published in 2023 - IPC H04N19/52 H04N19/105 H04N19/132 H04N19/176 H04N19/129 H04N19/137 

FIELD: video encoding.

SUBSTANCE: list of potentially suitable affine motion vector predictors (MVPs) is generated for the current block. Control point motion vector predictors (CPMVP) for control points (CP) of the current block are output. Control point motion vectors (CPMV) for control points of the current block are output. A reconstructed frame is generated for the current block by performing inter-prediction with respect to the current block based on the control point motion vectors. Control point motion vector differences (CPMVD) are derived for the control points of the current block based on the control point motion vector and control point motion vector predictors. Motion prediction information is encoded, including information about the differences of the control point motion vectors.

EFFECT: increased efficiency of video coding

15 cl, 26 dwg, 2 tbl