Image noise correction
US8411939B2 · kind B2 · utility
2Cited by
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20Claims
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Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jan 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image noise correction method is provided. For at least one target pixel having a determined pixel value, for each pixel in a window of pixels surrounding the target pixel, a weighting factor for the pixel is estimated based on the value of the target pixel and at least one pixel value in the window. An average of pixel values for the pixels in the window is calculated, with each pixel value being weighted by the weighting factor corresponding to the pixel. A new value is assigned to the target pixel based on the average of pixel values that is calculated. Also provided is an image noise correction device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.