Computerized tomography scanner and method of performing computerized tomography
US5778038A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jun 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved computerized tomography method and an apparatus for performing the method are used for construction of visual images of a subject utilizing a Radon transform inversion scheme of lower computational complexity. A multiscale backprojection with a postprocessing step is utilized instead of a conventional backprojection algorithm or direct Fourier method to obtain improved images. Multilevel methods can be applied under weaker regularity requirements than Fourier methods, so the present algorithm can be adjusted to provide different resolutions for different parts of the reconstruction, whether or not the Radon data are equally spaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.