Multilevel domain decomposition method for fast reprojection of images
US6263096A · kind A · utility
15Cited by
39References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present method is a process for reprojecting, or computing tomographic projections of an image, based on multilevel image domain decomposition. The method includes decomposing an image into one or more sub-images, followed by reprojection of the sub-images into sinograms, appropriate scaling of the sinograms, and aggregation of the sub-image sinograms into a single sinogram of the entire image. The multilevel process attains image quality comparable to that of direct reprojection methods, while requiring much less computation, and therefore being much faster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.