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Proceedings Paper

A backprojection filtered image reconstruction algorithm for circular cone-beam CT
Author(s): Liang Li; Zhiqiang Chen; Li Zhang; Yuxiang Xing; Kejun Kang
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Paper Abstract

In this paper we present a backprojection filtered type (BPF-type) reconstruction algorithm for cone-beam circular scans based on Zou and Pan's work. The algorithm could use all the projection data passing through the PI-line segments in 2π scanning range. Because all the projection data in 2π is used, the algorithm has a good quality for practical noisy projection data. The algorithm is implemented using numerical and practical experiments. The practical experiments were done on our X-ray CT system with a flat-panel detector. We also compare the results with FDK reconstructions. From the experimental results, we deem that the BPF algorithm could satisfy the requirement of the X-ray CT inspection.

Paper Details

Date Published: 2 March 2006
PDF: 8 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61424N (2 March 2006); doi: 10.1117/12.652520
Show Author Affiliations
Liang Li, Tsinghua Univ. (China)
Zhiqiang Chen, Tsinghua Univ. (China)
Li Zhang, Tsinghua Univ. (China)
Yuxiang Xing, Tsinghua Univ. (China)
Kejun Kang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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