	US 12,439,090 B2
	Residual and coefficients coding for video coding
Hong-Jheng Jhu, San Diego, CA (US); Xiaoyu Xiu, San Diego, CA (US); Yi-Wen Chen, San Diego, CA (US); Wei Chen, San Diego, CA (US); Che-Wei Kuo, San Diego, CA (US); Ning Yan, 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 Nov. 25, 2023, as Appl. No. 18/518,954.
Application 18/518,954 is a continuation of application No. PCT/US2022/031203, filed on May 26, 2022.
Claims priority of provisional application 63/193,593, filed on May 26, 2021.
Prior Publication US 2024/0107070 A1, Mar. 28, 2024
Int. Cl. H04N 19/00 (2014.01); H04N 19/44 (2014.01); H04N 19/70 (2014.01)

CPC H04N 19/70 (2014.11) [H04N 19/44 (2014.11)]

9 Claims

1. A method for video decoding, comprising:

receiving, by a decoder, a Sequence Parameter Set (SPS) rice extension flag that indicates whether an extension of rice parameter derivation for binarization of abs_remainder and dec_abs_level is used; and

receiving, by the decoder, a general constraint information (GCI) rice extension flag in GCI syntax, to provide general control of the SPS rice extension flag,

wherein abs_remainder is coded with Golomb-rice code and bypass-coded bins in a second pass when remaining number of context-coded bins is greater than or equal to 4 while coding a first pass; and

wherein dec_abs_level is directly coded in the second pass using Golomb-Rice code and bypass-coded bins when remaining number of context-coded bins is less than 4 while coding in the first pass.