Interframe noise reduction for video
US7511769B2 · kind B2 · utility
4Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Oct 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/911
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system to reduce noise includes a noise measurement device that provides a measure of noise associated with a digital input video signal. A noise reduction filter provides a noise-reduced digital output video signal corresponding to the luma and chroma of the digital input video signal. The noise reduction filter has a parameter that varies on a pixel basis for the component of the digital input video signal as a function of the measure of noise. The range and sensitivity of the noise reduction can be user programmable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.