Method of and system for destreaking the photoelectric image in multi-energy computed tomography
US7415147B2 · kind B2 · utility
4Cited by
40References
6Claims
0Family size
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Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jun 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30112
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of and a system for destreaking the photoelectric image in multi-energy computed tomography are provided, wherein the photoelectric projections are generated from the projection data acquired using at least two x-ray spectra for scanned objects; wherein a neighboring scheme is provided; the method comprises computing the statistics including mean and standard deviation using the neighboring scheme; calculating an upper limit and a lower limit from the computed statistics; detecting outliers in the photoelectric projections using the upper and lower limits; and replacing values of outliers using the upper or lower limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.