Process for coding and decoding video data of a sequence of images and corresponding encoder and decoder
US8837587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Dec 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/97
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The process comprising splitting of an image into blocks, intra coding of a current block using spatial prediction based on a matching pursuit algorithm selecting, from a dictionary of atoms, the atom the most correlated with a causal neighborhood of the current block, is characterized in that it performs the following steps: — determination of the two dimensional shift between the causal neighborhood and the selected atom, — generation of at least, a new phased atom taking into account the values of the two dimensional spatial shift, — use of this new atom for intra prediction, according to the matching pursuit algorithm, if better correlated than the selected one. Application to video data compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.