Method and system for correlated noise suppression in dual energy imaging
US8401266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2010 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Sep 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/408
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for correlated noise suppression are presented. The present correlated noise suppression technique estimates a correlation direction between noise values in a first and a second MD image corresponding to a first and a second basis material, respectively. The two MD images are diffused using the estimated correlation direction to generate a first and a second diffused image. Further, first and second noise masks are generated by subtracting the diffused image from the corresponding MD image. Edges in the first and the second MD images are processed with the first and second noise masks, respectively to generate a final first noise mask and a final second noise mask. The first MD image is then processed with the final second noise mask to generate a final first MD image and the second MD image is processed with the final first noise mask to generate a final second MD image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.