US 11,991,377 B2
Method and apparatus for video coding
Xiaozhong Xu, State College, PA (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 Aug. 24, 2021, as Appl. No. 17/409,947.
Application 17/409,947 is a continuation of application No. 16/536,301, filed on Aug. 8, 2019, granted, now 11,140,404.
Claims priority of provisional application 62/744,467, filed on Oct. 11, 2018.
Prior Publication US 2021/0385475 A1, Dec. 9, 2021
Int. Cl. H04N 19/44 (2014.01); H04N 19/132 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/96 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method for video encoding, comprising:
determining a single luma sample that has a location, relative to a shape formed by a combination of a plurality of luma units, based on a location of a center sample of a chroma unit of a chroma coding block (CB) to be coded in intra block copy (IBC) mode;
determining a chroma block vector (BV) of the chroma unit based on at least one luma unit of the plurality of luma units that is collocated with the chroma unit and corresponds to the determined single luma sample, the at least one collocated luma unit covering a same overlapping area as the chroma unit and being coded in the IBC mode; and
encoding at least one sample in the chroma unit based on the chroma BV.