US 11,812,040 B2
Signaling and syntax for in-loop reshaping information
Li Zhang, San Diego, CA (US); Kai Zhang, San Diego, CA (US); Hongbin Liu, Beijing (CN); Jizheng Xu, San Diego, CA (US); and Yue Wang, Beijing (CN)
Assigned to BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, Beijing (CN); and BYTEDANCE INC., Los Angeles, CA (US)
Filed by Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); and Bytedance Inc., Los Angeles, CA (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,480.
Application 17/714,480 is a continuation of application No. 17/357,244, filed on Jun. 24, 2021, granted, now 11,412,238.
Application 17/357,244 is a continuation of application No. PCT/CN2020/079429, filed on Mar. 16, 2020.
Claims priority of application No. PCT/CN2019/078185 (WO), filed on Mar. 14, 2019.
Prior Publication US 2022/0239932 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/00 (2014.01); H04N 19/186 (2014.01); H04N 19/117 (2014.01); H04N 19/159 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/186 (2014.11) [H04N 19/117 (2014.11); H04N 19/159 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
performing a conversion between a current video block of a video region of a video and a bitstream of the current video block,
wherein the conversion uses a coding tool in which at least one of following processes is applied to the current video block:
1) A forward mapping process for a luma component of the current video block, in which prediction samples of the luma component are converted from an original domain to a reshaped domain;
2) An inverse mapping process, which is an inverse operation of the forward mapping process to convert reconstructed samples of the luma component in the reshaped domain to the original domain, or
3) A scaling process, in which residual samples of a chroma component of the current video block are scaled before being used to reconstruct the chroma component of the current video block; and
wherein information used for the coding tool is present in a first adaptation parameter set that is different from a second adaptation parameter set used for including adaptive loop filter information,
wherein a first identifier of the first adaptation parameter set is conditionally present in a video region level;
wherein a second identifier of the second adaptation parameter set is conditionally present in the video region level.