US 12,452,462 B2
Systems and methods including syntax design for multi-symbol arithmetic coding
Madhu Peringassery Krishnan, Mountain View, CA (US); Liang Zhao, Sunnyvale, CA (US); Xin Zhao, San Jose, CA (US); Jing Ye, San Jose, 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. 9, 2022, as Appl. No. 17/983,876.
Claims priority of provisional application 63/358,309, filed on Jul. 5, 2022.
Prior Publication US 2024/0015331 A1, Jan. 11, 2024
Int. Cl. H04N 19/70 (2014.01); H04N 19/13 (2014.01); H04N 19/139 (2014.01); H04N 19/157 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/30 (2014.01); H04N 19/52 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/13 (2014.11); H04N 19/139 (2014.11); H04N 19/157 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/30 (2014.11); H04N 19/52 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method performed by a decoder, the method comprising:
receiving a coded video bitstream including a plurality of syntax elements;
determining a limit to an alphabet size for arithmetic coding by an arithmetic coding engine, the limit being determined as less than or equal to N where N is an integer value, and determining the limit comprises replacing a syntax element, of the syntax elements, depending on determining that N is less than 16;
decoding the plurality of syntax elements included in the coded video bitstream, based on the limit and the alphabet size, wherein each of the plurality of syntax elements is entropy coded with an alphabet size less than or equal to the limit.