Region-based texture coding and decoding method and corresponding systems
US5898798A · kind A · utility
12Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Oct 18, 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 in which images are segmented and coded with respect to their contours and textures. The texture coding step is carried out by means of a new technique relying on a wavelet decomposition of the images, called quincunx bidimensional wavelet transform and adapted to a region-based coding scheme, for applications allowing to reach very low bit rates while keeping a good image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.