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Inverse-geometry CT with linearly distributed source and detector: stationary configuration and direct filtered-backprojection reconstruction
Author(s): Tao Zhang; Yuxiang Xing; Hewei Gao; Zhiqiang Chen; Li Zhang
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Paper Abstract

Inverse-geometry computed tomography (CT) has potential in security inspection and medical applications. In this work, we explore a new concept of IGCT in stationary configuration with linearly distributed source and detector (L-IGCT). To develop an exact analytical reconstruction for L-IGCT, we derive a direct filteredbackprojection (FBP) type algorithm. We validate our method by simulation of a Shepp-Logan head phantom, in which CT images are exactly reconstructed from two L-IGCT scans, whose detector arrays are perpendicular to each other to provide sufficient projection data.

Paper Details

Date Published: 28 May 2019
PDF: 4 pages
Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110722T (28 May 2019); doi: 10.1117/12.2534817
Show Author Affiliations
Tao Zhang, Tsinghua Univ. (China)
Yuxiang Xing, Tsinghua Univ. (China)
Hewei Gao, Tsinghua Univ. (China)
Zhiqiang Chen, Tsinghua Univ. (China)
Li Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 11072:
15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Samuel Matej; Scott D. Metzler, Editor(s)

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