US 12,149,698 B2
Methods and devices for prediction dependent residual scaling for video coding
Xiaoyu Xiu, San Diego, CA (US); Yi-Wen Chen, San Diego, CA (US); Tsung-Chuan Ma, San Diego, CA (US); Hong-Jheng Jhu, Beijing (CN); Wei Chen, San Diego, CA (US); Xianglin Wang, San Diego, CA (US); 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 Sep. 20, 2022, as Appl. No. 17/949,167.
Application 17/949,167 is a continuation of application No. PCT/US2021/024493, filed on Mar. 26, 2021.
Claims priority of provisional application 63/001,229, filed on Mar. 27, 2020.
Prior Publication US 2023/0050261 A1, Feb. 16, 2023
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/186 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video coding, comprising:
selecting a plurality of reconstructed luma samples from a first pre-determined region neighboring to a second pre-determined region where a coding unit (CU) is located;
calculating an average of the plurality of reconstructed luma samples neighboring to the second pre-determined region; and
deriving a chroma residual scaling factor for decoding the CU by using the average of the plurality of reconstructed luma samples directly, without any clipping.