	US 11,659,162 B2
	Video processing using local illumination compensation
Hongbin Liu, Beijing (CN); Li Zhang, San Diego, CA (US); Kai Zhang, 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. 14, 2021, as Appl. No. 17/230,048.
Application 17/230,048 is a continuation of application No. PCT/IB2019/059042, filed on Oct. 23, 2019.
Claims priority of application No. PCT/CN2018/111436 (WO), filed on Oct. 23, 2018; application No. PCT/CN2019/071759 (WO), filed on Jan. 15, 2019; and application No. PCT/CN2019/072154 (WO), filed on Jan. 17, 2019.
Prior Publication US 2021/0235109 A1, Jul. 29, 2021
Int. Cl. H04N 19/105 (2014.01); H04N 19/119 (2014.01); H04N 19/176 (2014.01); H04N 19/436 (2014.01); H04N 19/70 (2014.01); H04N 19/186 (2014.01); H04N 19/52 (2014.01); H04N 19/55 (2014.01); H04N 19/96 (2014.01)

CPC H04N 19/105 (2014.11) [H04N 19/119 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/436 (2014.11); H04N 19/52 (2014.11); H04N 19/55 (2014.11); H04N 19/70 (2014.11); H04N 19/96 (2014.11)]

20 Claims

1. A video processing method, comprising:

inheriting local illumination compensation (LIC) parameters associated with another video block for a current block in a video region of a video; and

performing a conversion between the current block in the video region of the video and a bitstream of the video, wherein the video is represented as video frames comprising video blocks, and an LIC tool is enabled for video blocks that use a geometric prediction structure including a triangular prediction mode,

wherein the LIC tool includes using a linear model of illumination changes in the current block during the conversion, and

wherein the linear model generates a final predictor of the current block using the LIC parameters including a scaling factor and an offset.