	US 11,991,387 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. 21, 2023, as Appl. No. 18/304,964.
Application 18/304,964 is a continuation of application No. 17/222,380, filed on Apr. 5, 2021, granted, now 11,659,197.
Claims priority of provisional application 63/006,569, filed on Apr. 7, 2020.
Prior Publication US 2023/0300368 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/52 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (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

1. A method of decoding video data, the method comprising:

determining, from a video bitstream, a first syntax element specifying whether affine model based motion compensation is enabled;

determining, from the video bitstream, a third syntax element specifying whether subblock-based temporal motion vector predictors may be used in decoding of pictures of video data;

determining, from the video bitstream, based on affine model based motion compensation being enabled and with a value constrained based on a value of the third syntax element, a second syntax element specifying a maximum number of subblock-based merging motion vector prediction candidates; and

decoding a picture of the video data based on the maximum number of subblock-based merging motion vector prediction candidates.