US 12,137,250 B2
Signaling of coding tools for encoding a video component as monochrome video
Cheung Auyeung, Sunnyvale, CA (US); Xiang Li, Saratoga, 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 May 31, 2022, as Appl. No. 17/828,946.
Application 17/828,946 is a continuation of application No. 17/072,980, filed on Oct. 16, 2020, granted, now 11,368,723.
Claims priority of provisional application 62/924,674, filed on Oct. 22, 2019.
Prior Publication US 2022/0295107 A1, Sep. 15, 2022
Int. Cl. H04N 19/70 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method of video encoding in a video encoder, the method comprising:
setting a value of a first syntax element indicating whether a sequence of pictures is one of monochrome or includes color components that are encoded separately;
encoding the first syntax element in a bitstream; and
when the sequence of pictures is not monochrome,
setting a value of a second syntax element indicating whether joint coding of chroma residuals is enabled, and
encoding the second syntax element in the bitstream, the first syntax element and the second syntax element being different syntax elements,
wherein the value of the second syntax element is inferred when the sequence of pictures is monochrome.