Reducing noise in digital images
US8630508B2 · kind B2 · utility
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63References
21Claims
0Family size
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Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Mar 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A target digital image is received from an image sensor. The image is contaminated by noise of unknown magnitude that is represented by a reference digital image. A process is applied that uses statistical analysis of the target digital image and of the reference digital image to estimate a magnitude of the noise for at least some pixels of the target digital image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.