Method and apparatus for decoding and encoding video, and method and apparatus for predicting direct current coefficient
US9420290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2012 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/593
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a method and an apparatus for decoding and encoding a video, and a method and an apparatus for predicting a direct current coefficient. The video decoding method includes: receiving current frame image information sent by an encoding end, where the current frame image information includes prediction value information, and the prediction value information includes at least one intra-frame direct current DC prediction value; selecting a prediction value from the at least one intra-frame DC prediction value in the prediction value information as an intra-frame DC prediction value of the current image. Through the embodiments of the present invention, flexibility of encoding and decoding a video can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.