Adaptive filter for low-light noise reduction
US8699813B2 · kind B2 · utility
4Cited by
42References
25Claims
0Family size
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Key dates
| Filing date | Nov 19, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/213
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In general, in one embodiment, low-light noise is removed from an image by separately filtering luma and chroma components of the image, by adaptively filtering the image based at least in part on a Gaussian distribution of the image, and/or by dividing the image into separate regions and filtering each region separately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.