US 12,355,955 B2
Methods and apparatus of video coding using improved matrix-based intra prediction coding mode
Tsung-chuan Ma, San Diego, CA (US); Xianglin Wang, San Diego, CA (US); Yi-wen Chen, San Diego, CA (US); Xiaoyu Xiu, San Diego, CA (US); Hong-Jheng Jhu, San Diego, CA (US); Shuiming Ye, San Diego, CA (US); and Yun-fei Zheng, San Diego, CA (US)
Assigned to BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Apr. 30, 2024, as Appl. No. 18/651,044.
Application 18/651,044 is a continuation of application No. 17/498,616, filed on Oct. 11, 2021.
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 2024/0314303 A1, Sep. 19, 2024
This patent is subject to a terminal disclaimer.
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 decoding, comprising:
obtaining a bitstream comprising 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.