Method and system for coding an image sequence corresponding coded signal and storage medium and method and system for decoding such a coded signal
US6826230B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an image sequence coding method comprising a segmentation of each image into partitions made of regions, an estimation and compensation of the motion of these regions between two partitions, and a region contour and texture coding step. The proposed motion estimation step of this method is carried out in a loop circuit (91, 92) in which, after a definition of the mode of transmission of the regions, a particular coded signal is generated for the background regions of the partition, said signal including an order information, indicating a priority between contiguous regions, and an associated updated motion information. The implementation of this method reduces drastically the computational load before the contour coding. The invention also relates to the corresponding decoding method and system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.