US 12,170,763 B2
Methods and apparatus of video coding using improved matrix-based intra prediction coding mode
Tsung-chuan Ma, Beijing (CN); Xianglin Wang, Beijing (CN); Yi-wen Chen, Beijing (CN); Xiaoyu Xiu, Beijing (CN); Hong-jheng Jhu, Beijing (CN); Shuiming Ye, Beijing (CN); and Yun-fei Zheng, Beijing (CN)
Assigned to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Oct. 11, 2021, as Appl. No. 17/498,616.
Application 17/498,616 is a continuation of application No. PCT/US2020/027467, filed on Apr. 9, 2020.
Claims priority of provisional application 62/832,203, filed on Apr. 10, 2019.
Prior Publication US 2022/0030228 A1, Jan. 27, 2022
Int. Cl. H04N 19/11 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/11 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video encoding, comprising:
dividing a video frame into a plurality of video blocks;
identifying a neighboring block located at a predefined location relative to a current block of the plurality of video blocks and its associated matrix-based intra prediction mode;
determining a regular intra prediction mode corresponding to the matrix-based intra prediction mode for the neighboring block according to a predefined mathematical relationship between multiple matrix-based intra prediction modes and a corresponding regular intra prediction mode;
deriving a candidate intra prediction mode based on the determined regular intra prediction mode; and
inserting the derived candidate intra prediction mode into a mode candidate list according to a predefined order.