US 12,132,912 B2
Inter-prediction mode based image processing method, and apparatus therefor
Jaehyun Lim, Seoul (KR); and Naeri Park, Seoul (KR)
Assigned to Rosedale Dynamics LLC, Wilmington, DE (US)
Filed by Rosedale Dynamics LLC, Wilmington, DE (US)
Filed on Jul. 28, 2023, as Appl. No. 18/227,465.
Application 18/227,465 is a continuation of application No. 17/377,160, filed on Jul. 15, 2021, granted, now 11,750,818.
Application 17/377,160 is a continuation of application No. 16/089,455, granted, now 11,095,898, issued on Aug. 17, 2021, previously published as PCT/KR2016/003165, filed on Mar. 28, 2016.
Prior Publication US 2024/0283940 A1, Aug. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/137 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/51 (2014.01); H04N 19/513 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/137 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/51 (2014.11); H04N 19/521 (2014.11); H04N 19/96 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining a motion vector of a control point of a neighboring block of a current block;
determining motion vectors of at least two control points of the current block, wherein a motion vector of a first control point of the at least two control points is derived based on (i) the motion vector of the control point of the neighboring block, (ii) a difference between a position of an upper left sample of the neighboring block and a position of an upper left sample of the current block, and (iii) a difference between two motion vectors of two control points of the neighboring block with respect to at least one of a horizontal direction or a vertical direction;
dividing the current block into a plurality of sub-blocks;
deriving a motion vector of each of the plurality of sub-blocks based on the motion vectors of the at least two control points of the current block; and
generating a prediction block for each of the plurality of sub-blocks based on the motion vector of each of the plurality of sub-blocks.