Adaptive compression quality
US7551787B2 · kind B2 · utility
20Cited by
21References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2003 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Apr 24, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/33357
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Images are captured and are stored (either in compressed or non-compressed form) in non-volatile storage at a predetermined quality or Q level. When the storage fills to a predetermined threshold, some or all of the images are compressed or recompressed to a lower quality, to make room for additional storage; i.e. new images may be captured and compressed at this lower quality or Q level, to minimize the rate at which the remaining storage is consumed; or all of the captured and stored images may be compressed or recompressed to this lower quality or Q level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.