Invention Grant
- Patent Title: Unified position dependent prediction combination process
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Application No.: US15931225Application Date: 2020-05-13
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Publication No.: US11039156B2Publication Date: 2021-06-15
- Inventor: Liang Zhao , Xin Zhao , 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: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H04N19/44
- IPC: H04N19/44 ; H04N19/176 ; H04N19/105 ; H04N19/159

Abstract:
Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. An apparatus for video decoding includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The prediction information indicates an intra prediction direction for the current block that is one of (i) a diagonal intra prediction direction or (ii) a neighboring intra prediction direction adjacent to the diagonal intra prediction direction. The processing circuitry determines a usage of a position dependent prediction combination (PDPC) process according to the intra prediction direction of the current block. The same PDPC process is applied to both the diagonal intra prediction direction and the neighboring intra prediction direction. The processing circuitry reconstructs the current block based on the usage of the PDPC process on the current block.
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