	US 12,244,804 B2
	Methods and apparatus of video coding in 4:4:4 chroma format
Xiaoyu Xiu, Beijing (CN); Yi-Wen Chen, Beijing (CN); Tsung-Chuan Ma, Beijing (CN); Hong-Jheng Jhu, Beijing (CN); Xianglin Wang, 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 Jul. 5, 2022, as Appl. No. 17/857,849.
Application 17/857,849 is a continuation of application No. PCT/US2021/012165, filed on Jan. 5, 2021.
Claims priority of provisional application 62/965,859, filed on Jan. 25, 2020.
Claims priority of provisional application 62/957,273, filed on Jan. 5, 2020.
Prior Publication US 2022/0345705 A1, Oct. 27, 2022
Int. Cl. H04N 19/122 (2014.01); H04N 19/146 (2014.01); H04N 19/156 (2014.01); H04N 19/159 (2014.01); H04N 19/184 (2014.01); H04N 19/186 (2014.01); H04N 19/61 (2014.01); H04N 19/70 (2014.01)

CPC H04N 19/122 (2014.11) [H04N 19/146 (2014.11); H04N 19/159 (2014.11); H04N 19/184 (2014.11); H04N 19/186 (2014.11); H04N 19/619 (2014.11); H04N 19/70 (2014.11)]

19 Claims

1. A method of decoding video data, comprising:

receiving, from a bitstream, video data corresponding to a coding unit, wherein the coding unit is coded by intra-prediction mode or inter-prediction mode;

receiving a first syntax element from the video data, wherein the first syntax element indicates that the coding unit has been coded using adaptive color-space transform (ACT);

in accordance with a determination based on the first syntax element that the coding unit has been coded using the ACT:

performing a clipping operation to residuals of the coding unit; and

applying an inverse ACT to the residuals of the coding unit after the clipping operation,

wherein the clipping operation further comprises a first clipping operation applied to a luma component of the residuals of the coding unit, and a second clipping operation applied to chroma components of the residuals of the coding unit.