Method and apparatus for encoding frames of image data at a varying quality level
US6879723B1 · kind B1 · utility
14Cited by
7References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Sep 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus are provided for encoding frames of image data. Selected blocks one frame in a sequence are encoded with one or more quantization levels in a first range, and selected other blocks in the one frame are bypassed. In a frame that follows the one frame, the blocks corresponding to the bypassed blocks are encoded with one or more quantization levels in a second range of quantization levels, and the other blocks are bypassed for encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.