3-D recursive vector estimation for video enhancement
US7042945B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Inventor
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Aug 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal processor enhancing video information evaluates candidate vectors of enhancement algorithms utilizing an error function biased towards spatio-temporal consistency with a penalty function. The penalty function increases with the distance—both spatial and temporal—of the subject block from the block for which the candidate vector was optimal. Enhancements are therefore gradual across both space and time and the enhanced video information is intrinsically free of perceptible spatio-temporal varying artifacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.