Method and system for reducing artifact due to time delay in data acquisition system in computer tomography
US8023713B2 · kind B2 · utility
1Cited by
7References
14Claims
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Key dates
| Filing date | Jan 20, 2010 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Mar 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/416
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The CT imaging system optimizes its image generation by substantially reducing artifacts caused by a known amount of readout time lag in the X-ray detectors or data acquisition system. Although each detector row takes the same amount of time to read out the signals, the time lag cumulates over the rows as each row is sequentially read out. The back-projection coordinates are correspondingly corrected based upon the above described delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.