Truncation compensation algorithm for iterative reconstruction
US8013307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2005 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Nov 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/1615
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An imaging system (10) includes at least one radiation detector (20) disposed adjacent a subject receiving aperture (18) to detect and measure at least one of emission and transmission radiation from a subject, the detector (20) at a plurality of projection angles. A processor (64) determines which radiation data belong to a field of view of the radiation detector (20) at each projection angle. An image processor (70, 72) iteratively reconstructs the radiation detected only in the determined field of view into image representations. Truncated data is compensated by supplying the untruncated data from the projections taken at different angles at which the truncated data is untruncated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.