US 11,930,167 B2
Wide-angle intra prediction
Xin Zhao, San Jose, CA (US); Liang Zhao, Sunnyvale, CA (US); Shan Liu, San Jose, CA (US); and Xiang Li, Saratoga, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on Sep. 8, 2022, as Appl. No. 17/940,936.
Application 17/940,936 is a continuation of application No. 16/985,866, filed on Aug. 5, 2020, granted, now 11,533,478.
Application 16/985,866 is a continuation of application No. 16/359,631, filed on Mar. 20, 2019, granted, now 10,771,782, issued on Sep. 8, 2020.
Application 16/359,631 is a continuation of application No. 16/147,313, filed on Sep. 28, 2018, granted, now 10,284,844, issued on May 7, 2019.
Claims priority of provisional application 62/711,390, filed on Jul. 27, 2018.
Claims priority of provisional application 62/693,050, filed on Jul. 2, 2018.
Prior Publication US 2023/0012475 A1, Jan. 19, 2023
Int. Cl. H04N 19/11 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/11 (2014.11) [H04N 19/176 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video encoding, the method comprising:
determining an intra prediction angle corresponding to an intra prediction mode that is a directional intra prediction mode and not a planar intra prediction mode, the intra prediction angle being (i) beyond a bottom left direction 45 degrees from horizontal mode, or (ii) beyond a top right direction 45 degrees from the horizontal mode;
encoding at least one sample of a block based on the intra prediction angle in a bitstream; and
encoding the intra prediction mode in the bitstream based on a relationship between a predetermined plurality of intra prediction modes and a corresponding predetermined plurality of intra prediction angles, the intra prediction mode corresponding to the determined intra prediction angle, wherein
the predetermined plurality of intra prediction modes includes ten intra prediction modes that are beyond the bottom left direction; and
the predetermined plurality of intra prediction modes includes ten intra prediction modes that are beyond the top right direction.