US 12,382,055 B2
Chroma coding enhancement in cross-component sample adaptive offset
Che-Wei Kuo, Beijing (CN); Xiaoyu Xiu, Beijing (CN); Wei Chen, Beijing (CN); Xianglin Wang, Beijing (CN); Yi-Wen Chen, Beijing (CN); Hong-Jheng Jhu, Beijing (CN); and Bing Yu, Beijing (CN)
Assigned to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed on May 30, 2023, as Appl. No. 18/325,179.
Application 18/325,179 is a continuation of application No. PCT/US2021/061004, filed on Nov. 29, 2021.
Claims priority of provisional application 63/121,980, filed on Dec. 7, 2020.
Claims priority of provisional application 63/119,466, filed on Nov. 30, 2020.
Prior Publication US 2023/0388509 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/132 (2014.01); H04N 19/172 (2014.01); H04N 19/186 (2014.01); H04N 19/196 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/172 (2014.11); H04N 19/186 (2014.11); H04N 19/196 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of decoding a video signal, comprising:
receiving, from the video signal, a picture frame that includes a first component, and a second component;
determining a classifier for the first component based on a first set of one or more samples of the second component associated with a respective sample of the first component;
determining a sample offset for the respective sample of the first component according to the classifier; and
modifying a value of the respective sample of the first component based on the determined sample offset,
wherein the first component and the second component are chroma components.