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Proceedings Paper

Numerical studies on Feldkamp-type and Katsevich-type algorithms for cone-beam scanning along nonstandard spirals
Author(s): Jiehua Zhu; Shiying Zhao; Hengyong Yu; Yangbo Ye; Seung Wook Lee; Ge Wang
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Paper Abstract

In this paper, we perform numerical studies on Feldkamp-type and Katsevich-type algorithms for cone-beam reconstruction with a nonstandard spiral locus to develop an electron-beam micro-CT scanner. Numerical results are obtained using both the approximate and exact algorithms in terms of image quality. It is observed that the two algorithms produce similar quality if the cone angle is not large and/or there is no sharp density change along the z-direction. The Katsevich-type algorithm is generally preferred due to its nature of exactness.

Paper Details

Date Published: 26 October 2004
PDF: 8 pages
Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); doi: 10.1117/12.559876
Show Author Affiliations
Jiehua Zhu, Univ. of Iowa (United States)
Shiying Zhao, Univ. of Iowa (United States)
Hengyong Yu, Hangzhou Dianzi Univ. (China)
Yangbo Ye, Univ. of Iowa (United States)
Seung Wook Lee, Korea Atomic Energy Research Institute (South Korea)
Ge Wang, Univ. of Iowa (United States)


Published in SPIE Proceedings Vol. 5535:
Developments in X-Ray Tomography IV
Ulrich Bonse, Editor(s)

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