Joint color channel image noise filtering and edge enhancement in the Bayer domain
US8532373B2 · kind B2 · utility
3Cited by
1References
18Claims
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Key dates
| Filing date | Nov 4, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/81
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for image noise filtering is provided that includes receiving a Bayer domain image with four color channels, generating a hierarchical representation of the four color channels comprising a set of coefficient arrays at each level of the hierarchical representation, modifying the coefficient arrays of the color channels jointly to remove noise, and generating a noise filtered and edge enhanced Bayer domain image based on the jointly modified coefficient arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.