Decoding method and apparatus, encoding method and apparatus, and device
US12028543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a decoding method and apparatus, an encoding method and apparatus, and a device. The decoding method includes: determining prediction-mode flag information of a current block, the prediction-mode flag information includes a flag value of each of one or more of N candidate prediction modes; when the flag value is a first value, the flag value indicates that a candidate prediction mode is enabled, and when the flag value is a second value, the flag value indicates that the candidate prediction mode is disabled, and for the flag value of one of the N candidate prediction modes, if the current block does not satisfy a decoding condition of the flag value of the candidate prediction mode, the flag value is a derived flag value of the candidate prediction mode; determining a target prediction mode used by the current block according to the prediction-mode flag information, where the target prediction mode is one of the N candidate prediction modes; and decoding the current block according to the target prediction mode. The present disclosure can improve the encoding performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.