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Proceedings Paper

Effects of number of views, cone angle, detector bit depth, and projection noise level on the SNR in cone-beam reconstruction
Author(s): Roger H. Johnson; Xiaoyi Wu; Paul S. Cho
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Paper Abstract

Three-dimensional, conebeam image reconstruction from planar, transmitted x-ray projections is the most dose-efficient method for computed tomography. A number of factors, including the number of projections acquired, the cone angle subtended by the detector, the detector bit- depth, and the amount of noise in the projections, influence the quality of the reconstruction. Using simulations, we investigate the effects of these parameters on the signal-to-noise level attainable using the Feldkamp algorithm for conebeam reconstruction.

Paper Details

Date Published: 11 April 1996
PDF: 11 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237796
Show Author Affiliations
Roger H. Johnson, The Ohio State Univ. (United States)
Xiaoyi Wu, The Ohio State Univ. (United States)
Paul S. Cho, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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