Back projection image reconstruction apparatus and method
US4680709A · kind A · utility
17Cited by
1References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 13, 1984 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Nov 13, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Image reconstruction time in a CT scanner is enhanced by using a pipeline structure and interpolation techniques to identify each detector for use in back projection of radiation aborption measurements through each pixel in each view of the scanner. In a preferred embodiment, detectors are identified by calculation for a pixel in every third view with detectors for intermediate views obtained by interpolation of the calculated detectors. Similarly, detectors are identified for every other pixel in a view with the detector for the intermediate pixel identified by interpolation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.