Noise treatment of low-dose computed tomography projections and images
US7187794B2 · kind B2 · utility
41Cited by
10References
24Claims
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Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Nov 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for treating noise in low-dose computed tomography projections and reconstructed images comprises acquiring raw data at a low mA value, applying a domain specific filter in a sinogram domain of the raw data, and applying an edge preserving smoothing filter in an image domain of the raw data after filtering in the sinogram domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.