Hybrid reconstruction algorithm for x-ray computed tomography |
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| Authors: | R Waggener M Lee D Mickish J Lange J Feldmeier |
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| Affiliation: | Radiology Department, University of Texas Health Science Center, San Antonio 78284. |
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| Abstract: | ![]()
A hybrid reconstruction algorithm (HRA) is derived for fan beam geometry for use with systems utilizing a linear array of detectors. The algorithm uses fan beam geometry with a modified parallel beam reconstruction formula. The parallel beam algorithm is used with fan beam geometry by a simple geometric conversion and a different back projection formula. Correction for center of rotation shift is done during the back projection. Computer simulations are shown, both with the center of rotation shift uncorrected and corrected. |
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