Method and system for noise reduction in low dose computed tomography
US9189832B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Mar 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes de-noising projection data from a lower dose scan in the projection domain, reconstructing the de-noised projection data to generate volumetric image data, and de-noising the volumetric image data in the image domain. A system includes a projection domain processor (116) that de-noises projection data from a lower dose scan, a reconstructor (118) that reconstructs the de-noised projection data and generates image data, and an image domain processor (120) that de-noises the image data such that a noise level of the de-noise image data is substantially the same as an estimated image data noise level of image data for a higher dose scan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.