Correction of CT attenuation data using fan beam reprojections
US5438602A · kind A · utility
16Cited by
7References
9Claims
0Family size
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Key dates
| Filing date | Dec 23, 1993 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Dec 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an x-ray computed tomography system which acquire x-ray attenuation data using a fan beam of radiation, corrections for beam hardening are made by reprojecting the CT image data. The reprojection computations are reduced by rotating and warping the CT image data, and then performing a parallel reprojection along columns of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.