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Proceedings Paper

Practical cone-beam lambda tomography
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Paper Abstract

As a potentially important technology for medical x-ray Computed Tomography (CT), Lambda tomography (LT) is to reconstruct a gradient-like image only from local projection data. Based on our recently derived exact fan-beam LT formula, here we propose a practical cone-beam LT algorithm for LT reconstruction from local data collected along an arbitrary smooth 3D curve. A key step in our algorithm is to determine an appropriate vector perpendicular to the line connecting the x-ray source and an image point. The algorithm is implemented assuming an equi-spatial planar detector and a nonstandard spiral trajectory. The numerical simulation results demonstrate the merits of our method.

Paper Details

Date Published: 7 September 2006
PDF: 8 pages
Proc. SPIE 6318, Developments in X-Ray Tomography V, 63181S (7 September 2006); doi: 10.1117/12.682202
Show Author Affiliations
Hengyong Yu, Univ. of Iowa (United States)
Yangbo Ye, Univ. of Iowa (United States)
Ge Wang, Univ. of Iowa (United States)

Published in SPIE Proceedings Vol. 6318:
Developments in X-Ray Tomography V
Ulrich Bonse, Editor(s)

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