US 12,323,610 B2
Adaptive color transform performed with prediction coding
Xin Zhao, San Diego, CA (US); Xiaozhong Xu, State College, PA (US); Xiang Li, Los Gatos, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on Nov. 4, 2022, as Appl. No. 17/981,019.
Application 17/981,019 is a continuation of application No. 17/446,777, filed on Sep. 2, 2021, granted, now 11,563,965.
Application 17/446,777 is a continuation of application No. 16/817,028, filed on Mar. 12, 2020, granted, now 11,153,591, issued on Oct. 19, 2021.
Claims priority of provisional application 62/817,500, filed on Mar. 12, 2019.
Prior Publication US 2023/0179785 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/44 (2014.01); H04N 19/124 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/423 (2014.01); H04N 19/61 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/124 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/423 (2014.11); H04N 19/61 (2014.11); H04N 19/96 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing visual media data, the method comprising:
performing a conversion between a visual media file and a bitstream of the visual media data according to a format rule, wherein
the bitstream includes coding information of an encoded current block,
the format rule specifies that, in response to a determination that different color components of a color transform are coded using a same transform unit partitioning tree, the color transform is performed on the encoded current block;
the format rule specifies that, after the color transform is performed, a transform is performed on the encoded current block;
the format rule specifies that, after the transform is performed on the encoded current block, a quantization is performed on the encoded current block;
the format rule specifies that the bitstream includes the encoded current block after the quantization is performed; and
the format rule specifies that the color transform is applied only for inter coded blocks when different color components share the same transform unit partitioning tree.