US 12,309,418 B2
Method for encoding/decoding image signal and device therefor
Bae Keun Lee, Seongnam-si (KR)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 30, 2022, as Appl. No. 17/957,994.
Application 17/957,994 is a continuation of application No. 17/056,307, granted, now 11,463,723, previously published as PCT/KR2019/018500, filed on Dec. 26, 2019.
Claims priority of application No. 10-2018-0169169 (KR), filed on Dec. 26, 2018.
Prior Publication US 2023/0179790 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/52 (2014.01); H04N 19/107 (2014.01); H04N 19/122 (2014.01); H04N 19/184 (2014.01)
CPC H04N 19/52 (2014.11) [H04N 19/107 (2014.11); H04N 19/122 (2014.11); H04N 19/184 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A system comprising:
one or more processors; and
one or more non-transitory computer readable media storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
determining control point motion vectors for a current block;
generating an affine merge candidate list for the current block;
specifying one of a plurality of affine merge candidates included in the affine merge candidate list;
deriving a motion vector for a sub-block in the current block based on the control point motion vectors and the specified affine merge candidate, the sub-block being a smaller region than the current block;
deriving offset data for the sub-block; and
generating prediction samples of the sub-block based on the motion vector and the offset data,
wherein a prediction sample in the sub-block is obtained based on a first prediction sample derived based on the motion vector of the sub-block and an offset value.