US 11,902,538 B2
Mapping method, encoder, decoder and computer storage medium
Junyan Huo, Dongguan (CN); Yanzhuo Ma, Dongguan (CN); Shuai Wan, Dongguan (CN); Fuzheng Yang, Dongguan (CN); Xinwei Li, Dongguan (CN); and Haixin Wang, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Oct. 14, 2022, as Appl. No. 17/965,986.
Application 17/965,986 is a continuation of application No. 17/319,900, filed on May 13, 2021, granted, now 11,546,608.
Application 17/319,900 is a continuation of application No. PCT/CN2019/092701, filed on Jun. 25, 2019.
Prior Publication US 2023/0046175 A1, Feb. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/593 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/593 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method for decoding a picture, applied to a decoder, wherein the method comprises:
determining an intra prediction mode for a current block;
when the intra prediction mode is a Matrix-based Intra Prediction (MIP) mode,
deriving a prediction mode of luma component of the current block by using the MIP mode; and
mapping the MIP mode to PLANAR mode in a derivation of chroma prediction mode of the current block, and
when the intra prediction mode is determined based on a color component of the current block, mapping the intra prediction mod to a second MIP mode.