Method and apparatus for compressing and decompressing images
US7221804B2 · kind B2 · utility
21Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | Aug 27, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Aug 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for encoding (622) digital image data wherein a region of interest (606) can be specified either before the encoding process has begun or during the encoding process, such that the priority (616) of the encoder outputs are modified so as to place more emphasis on the region of interest, therefore increasing the speed and/or increasing the fidelity of the reconstructed region of interest. The system, therefore, enables more effective reconstruction of digital images over communication lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.