US 12,355,982 B2
Decoder-side chroma intra prediction mode gradient-based derivation
Xinwei Li, Beijing (CN); Ru-Ling Liao, Beijing (CN); Jie Chen, Beijing (CN); and Yan Ye, San Diego, CA (US)
Assigned to Alibaba (China) Co., Ltd, Hangzhou (CN)
Filed by Alibaba (China) Co., Ltd., Hangzhou (CN)
Filed on Dec. 29, 2022, as Appl. No. 18/091,178.
Claims priority of provisional application 63/315,957, filed on Mar. 2, 2022.
Claims priority of provisional application 63/296,482, filed on Jan. 4, 2022.
Prior Publication US 2023/0217030 A1, Jul. 6, 2023
Int. Cl. H04N 19/159 (2014.01); H04N 19/11 (2014.01); H04N 19/117 (2014.01); H04N 19/13 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/593 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/11 (2014.11); H04N 19/117 (2014.11); H04N 19/13 (2014.11); H04N 19/132 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/593 (2014.11); H04N 19/70 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A computing system, comprising:
one or more processors, and
a computer-readable storage medium communicatively coupled to the one or more processors, the computer-readable storage medium storing computer-readable instructions executable by the one or more processors that, when executed by the one or more processors, perform associated operations comprising:
signaling a first flag in a bitstream, the first flag indicating whether to apply, by one or more processors of a computing system configured by an entropy decoder, a gradient-based derived chroma intra prediction mode to a current chroma block;
signaling a second flag in the bitstream, the second flag indicating whether to apply, by the one or more processors configured by an entropy decoder, Direct Mode (“DM”) mode to the current chroma block;
wherein the first flag is after the second flag in the bitstream.