Image denoising device
US8565546B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 16, 2009 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Apr 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10132
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing device comprises a store (110) for receiving image data (8) with a pixel identifier and at least one piece of associated intensity data and a pilot (100) which is provided to call a reduction unit (120) with pixels to be weighted and, for each pixel, in order to define a first neighborhood and a plurality of second neighborhoods with a neighborhood selection unit (130), in order to obtain a weighting value for the second neighborhood with a weighting unit (140) with the first neighborhood and a neighborhood among the plurality of second neighborhoods, in order to define each time a piece of weighted intensity data of a working pixel as the weighting value of the second neighborhood multiplied by the intensity data of the associated working pixel, and in order to define a piece of weighted intensity data of the pixel to be weighted by adding each of the pieces of weighted intensity data of a working pixel. The weighting unit (140) is provided to calculate the distance between first and second neighborhoods on the basis of a sum, where each square of the difference between the respective intensity data of these neighborhoods is modulated by a quantity which is inv…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.