Method and apparatus for reducing noise
US8768093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | May 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method and apparatus for reducing noise. A method of reducing noise according to an aspect of the present invention includes calculating a noise level of a reference pixel forming an input image, determining a weighted value to be allocated to the reference pixel based on similarity of a reference window including the reference pixel with respect to at least one comparative window existing in a comparative region of the input image and having the same size as the reference window, and the calculated noise level of the reference pixel, and filtering the input image using the determined weighted value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.