Invention Grant
- Patent Title: Block vector modification for intra block copy
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Application No.: US17940986Application Date: 2022-09-08
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Publication No.: US11722679B2Publication Date: 2023-08-08
- Inventor: Xiaozhong Xu , Xiang Li , Shan Liu
- Applicant: Tencent America LLC
- Applicant Address: US CA Palo Alto
- Assignee: Tencent America LLC
- Current Assignee: Tencent America LLC
- Current Assignee Address: US CA Palo Alto
- Agency: Arentfox Schiff LLP
- Main IPC: H04N19/159
- IPC: H04N19/159 ; H04N19/174 ; H04N19/96 ; H04N19/176

Abstract:
Methods, apparatuses, and non-transitory computer-readable mediums are provided. A block vector of a current block that is to be coded in intra block copy (IBC) mode is determined. The block vector points to a first reference block of the current block in a current picture. An operation is performed on at least one component of the block vector based on the first reference block being outside a search range of the current block. The block vector is modified by the operation to point to a second reference block that is within the search range for the current block. The current block is encoded based on the modified block vector. The performing the operation includes performing a modulo operation on a y component of the block vector based on a size of a current coding tree unit (CTU) that includes the current block.
Public/Granted literature
- US20230007274A1 BLOCK VECTOR MODIFICATION FOR INTRA BLOCK COPY Public/Granted day:2023-01-05
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