Noise suppression method for digital image
US8244060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise suppression method for a digital image is described, which utilizes an adjacent area of a target pixel in the digital image to conduct a denoising process on the target pixel. The noise suppression method includes the following steps. A feature-weighted processing procedure is performed on each original pixel in the digital image to convert the original pixel into a feature-weighted pixel. According to a position of the target pixel in the digital image, a reference pixel is selected from a corresponding position in the feature-weighted image. Similarities of the reference pixel relative to the other feature-weighted pixels are respectively computed. Through the computed similarities, a feature-weighted pixel for compensation is selected from the feature-weighted pixels other than the reference pixel. Finally, noise suppression is performed on the reference pixel by using the feature-weighted pixel for compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.