US 11,902,514 B2
Method and apparatus for multi-line intra prediction
Liang Zhao, Sunnyvale, CA (US); Xin Zhao, San Diego, CA (US); Xiang Li, Los Gatos, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Jun. 10, 2022, as Appl. No. 17/837,805.
Application 17/837,805 is a continuation of application No. 17/172,591, filed on Feb. 10, 2021, granted, now 11,418,778.
Application 17/172,591 is a continuation of application No. 16/662,958, filed on Oct. 24, 2019, granted, now 10,944,964, issued on Mar. 9, 2021.
Application 16/662,958 is a continuation of application No. 16/199,891, filed on Nov. 26, 2018, granted, now 10,491,893, issued on Nov. 26, 2019.
Claims priority of provisional application 62/724,575, filed on Aug. 29, 2018.
Prior Publication US 2022/0329790 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/11 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/11 (2014.11) [H04N 19/117 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of controlling intra prediction for encoding of a video sequence, the method being performed by at least one processor, and the method comprising:
based on a reference line index signaling a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, applying intra smoothing on one or more first reference lines comprising the first reference line, among the plurality of reference lines, and
based on the intra smoothing being applied on the one or more first reference lines, applying a position-dependent intra prediction combination (PDPC) on one or more third reference lines comprising the first reference line, among the plurality of reference lines, while preventing application of the PDPC on one or more fourth reference lines other than the one or more third reference lines, among the plurality of reference lines.