Method and apparatus for enhancing detail based on noise elimination, and method and apparatus for calculating noise weight
US8699816B2 · kind B2 · utility
2Cited by
10References
26Claims
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Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Feb 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to enhance detail of an image based on noise elimination includes calculating a noise weight corresponding to a probability that a center pixel, located in a block of pixels of a region of the image, is noise by using a difference between the center pixel and a surrounding pixel located in the block of pixels, calculating a first substitution value for the center pixel based on the noise weight; and calculating a second substitution value for the center pixel by using the noise weight and a sharpen filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.