US 12,267,493 B2
Method for using adaptive loop filter and system thereof
Jie Chen, San Mateo, CA (US); Ru-Ling Liao, San Mateo, CA (US); Xinwei Li, San Mateo, CA (US); and Yan Ye, San Mateo, CA (US)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on Nov. 16, 2023, as Appl. No. 18/511,824.
Application 18/511,824 is a continuation of application No. 17/456,621, filed on Nov. 26, 2021, granted, now 11,863,742.
Claims priority of provisional application 63/121,142, filed on Dec. 3, 2020.
Prior Publication US 2024/0089430 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/82 (2014.01); H04N 19/117 (2014.01); H04N 19/17 (2014.01); H04N 19/182 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/17 (2014.11); H04N 19/182 (2014.11); H04N 19/82 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A video data processing method, comprising:
receiving a bitstream;
decoding a first index from the bitstream;
determining a maximum number of adaptive loop filters (ALFs) for a component of a picture based on the first index, wherein:
the maximum number of the ALFs is at least 64 when the first index is equal to a first value; and
the maximum number of the ALFs is 16 when the first index is equal to a second value or not equal to the first value; and
processing pixels in the picture with the ALFs.