Methods and devices for image encoding and decoding, and corresponding computer programs
US9167263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2010 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Sep 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and device relate to coding an image split up into partitions, which comprises the selection of at least one mode of coding and of its associated coding information items, from among items placed in competition, the prediction of the data of a current partition, the determination of residual data. Calculation of the value of a function representative of said residual data are performed, then the comparison of said calculated value with a value selected as value of competition index from among the associated values. If the values are equal, said signal transmitted comprises said residual data and said associated coding information items. If not, the residual data determined are modified so that the value of the function representative of the residual data is equal to the selected value of competition index, the signal transmitted comprising the modified residual data, excluding the selected value of competition index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.