Apparatus and method for reducing noise of image sensor
US7813583B2 · kind B2 · utility
3Cited by
3References
37Claims
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Key dates
| Filing date | Dec 18, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Aug 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for reducing noise of an image sensor are provided. The apparatus includes a noise level setting module setting a noise level representing an image frame expressed as a component in a color space; a kernel generation module generating a kernel for filtering pixels that constitute the image frame based on the set noise level; and a filter application module convoluting the pixels using the generated kernel and normalizing the pixels using the convolution result. Since noise generated by the image sensor can be adaptively reduced, the quality of an output image can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.