US 12,256,079 B2
Methods and systems for cross-component sample adaptive offset
Xinwei Li, San Mateo, CA (US); Ru-Ling Liao, San Mateo, CA (US); Jie Chen, 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 Jul. 18, 2023, as Appl. No. 18/354,447.
Application 18/354,447 is a continuation of application No. 17/538,397, filed on Nov. 30, 2021, granted, now 11,750,816.
Claims priority of provisional application 63/120,814, filed on Dec. 3, 2020.
Prior Publication US 2023/0362384 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/172 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/172 (2014.11); H04N 19/186 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video data processing comprising:
determining a category index of a target chroma sample, wherein the category index is determined based on a first reconstructed value associated with a co-located luma sample and a second reconstructed value associated with the target chroma sample;
determining an offset based on the category index; and
adding the offset to a third reconstructed value associated with the target chroma sample.