Contrast enhancement for CT systems
US5761333A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Aug 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention, in one form, is a method for improving grey-white matter differentiation between regions of an image to be reconstructed from data obtained by a CT scan. More particularly, in accordance with one form of the present invention, a re-mapping function is utilized to generate CT numbers. In accordance with such function, CT numbers that are outside the grey-white matter region are not "stretched". The CT numbers within such region are "stretched" with the larger "stretch" centered on the grey-white matter region and tapering off at the boundary. Using such a function, grey-white matter differentiation is improved without adversely affecting quality and accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.