US 12,238,297 B2
Method for constructing MPM list, method for obtaining intra prediction mode of chroma block, and apparatus
Xiang Ma, Moscow (RU); Haitao Yang, Shenzhen (CN); Yin Zhao, Hangzhou (CN); and Lian Zhang, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Dec. 3, 2021, as Appl. No. 17/541,467.
Application 17/541,467 is a continuation of application No. PCT/CN2020/094387, filed on Jun. 4, 2020.
Claims priority of application No. 201910486183.5 (CN), filed on Jun. 5, 2019.
Prior Publication US 2022/0094947 A1, Mar. 24, 2022
Int. Cl. H04N 7/12 (2006.01); H04N 19/103 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/103 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/70 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method for constructing a most probable mode (MPM) list, wherein a matrix-based intra prediction (MIP) mode is used for a current block, and the method comprising:
obtaining intra prediction mode information of a neighboring block, wherein the neighboring block comprises an above neighboring block or a left neighboring block of the current block;
determining, based on the intra prediction mode information of the neighboring block, whether an intra prediction mode of the neighboring block is the MIP mode; and either
performing MPM list construction of the current block without using the intra prediction mode of the neighboring block when the intra prediction mode of the neighboring block is not the MIP mode; or
performing MPM list construction of the current block by using the intra prediction mode of the neighboring block when the intra prediction mode of the neighboring block is the MIP mode.