CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11); H04N 19/593 (2014.11); H04N 19/96 (2014.11)] | 20 Claims |
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.
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