Digital video compression
US7822281B2 · kind B2 · utility
2Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2004 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jun 17, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of compressing a current image of a sequence of images. The current image is transformed with a predetermined transform to provide a set of transform coefficients, which are divided into blocks. An encoding termination condition is determined for at least one block, and the block is encoded in a series of coding passes. In a current coding pass, a performance measure is predicted, and encoding is terminated if the performance measure satisfies the encoding termination condition. Different color components may be given different weightings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.