Title:
INTRA-FRAME PREDICTION METHOD AND DEVICE, DECODER, AND ENCODER
Document Type and Number:
WIPO Patent Application WO/2022/116113
Kind Code:
A1
Abstract:
An intra-frame prediction method and device, a decoder, and an encoder. The method according to an embodiment of the present application comprises: using two or more different intra-frame prediction modes to perform intra-frame prediction for respective blocks to be processed, so as to obtain two or more kinds of prediction blocks; and combining, according to a weight matrix, the obtained two or more kinds of prediction blocks, so as to obtain prediction blocks of the blocks to be processed. The embodiment of the present application uses multiple intra-frame prediction modes to determine multiple prediction blocks, thereby achieving prediction for complex textures, improving the quality of intra-frame prediction, and accordingly improving compression performance. In addition, the intra-frame prediction method in the embodiment of the present application uses a diversified weight matrix to ensure prediction for complex textures, thereby improving the quality of intra-frame prediction, and accordingly improving compression performance.
Inventors:
WANG FAN (CN)
Application Number:
PCT/CN2020/133692
Publication Date:
June 09, 2022
Filing Date:
December 03, 2020
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04N19/105; H04N19/593
Domestic Patent References:
| WO2019217122A1 | 2019-11-14 |
Foreign References:
| CN111373755A | 2020-07-03 | |||
| CN105979261A | 2016-09-28 | |||
| CN110771163A | 2020-02-07 | |||
| CN111630858A | 2020-09-04 | |||
| US20200236361A1 | 2020-07-23 |
Other References:
A. SEIXAS DIAS, G. KULUPANA, S. BLASI (BBC): "CE10-related: Multi-Hypothesis Intra with Weighted Combination", 13. JVET MEETING; 20190109 - 20190118; MARRAKECH; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. M0454-v1, 2 January 2019 (2019-01-02), pages 1 - 4, XP030200336
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
Download PDF: