US 11,800,118 B2
Method and apparatus for video coding
Xiaozhong Xu, State College, PA (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 May 6, 2022, as Appl. No. 17/738,463.
Application 17/738,463 is a continuation of application No. 16/923,599, filed on Jul. 8, 2020, granted, now 11,356,675.
Claims priority of provisional application 62/873,576, filed on Jul. 12, 2019.
Claims priority of provisional application 62/873,054, filed on Jul. 11, 2019.
Prior Publication US 2022/0264114 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/159 (2014.01); H04N 19/96 (2014.01); H04N 19/176 (2014.01); H04N 19/593 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11); H04N 19/593 (2014.11); H04N 19/96 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video coding in an encoder, comprising:
determining a block vector of a current block of a coding tree unit (CTU) that is coded in intra block copy (IBC) mode, the block vector indicating a reference block in a search region for the current block, reference samples used to reconstruct the current block in the IBC mode being contained in a reference sample memory including a plurality of memory regions; and
coding the current block based on the reference block, wherein
a subset of the plurality of memory regions of the reference sample memory is used as the search region, and
the block vector of the current block is constrained such that the reference block is contained in (i) one of the subset of the plurality of memory regions or (ii) two adjacent memory regions in the subset of the plurality of memory regions.