US 11,659,197 B2
Signaling number of subblock merge candidates in video coding
Han Huang, San Diego, CA (US); Jianle Chen, San Diego, CA (US); Wei-Jung Chien, San Diego, CA (US); and Marta Karczewicz, San Diego, CA (US)
Assigned to QUALCOMM INCORPORATED, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 5, 2021, as Appl. No. 17/222,380.
Claims priority of provisional application 63/006,569, filed on Apr. 7, 2020.
Prior Publication US 2021/0314598 A1, Oct. 7, 2021
Int. Cl. H04N 19/52 (2014.01); H04N 19/70 (2014.01); H04N 19/176 (2014.01); H04N 19/132 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/52 (2014.11) [H04N 19/132 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of encoding video data, the method comprising:
encoding, in a video bitstream, a first syntax element specifying whether affine model based motion compensation is enabled;
based on affine model based motion compensation being enabled, encoding, in the video bitstream, a second syntax element specifying a maximum number of subblock-based merging motion vector prediction candidates, wherein a value of the second syntax element is constrained based on a value of a third syntax element that is different than the first syntax element; and
encoding a picture of the video data based on the maximum number of subblock-based merging motion vector prediction candidates.