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Proceedings Paper

A novel noise suppression solution in cone-beam CT images
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Paper Abstract

The Feldkamp (FDK) algorithm is the most popular algorithm for circular cone-beam computed tomography (CBCT). While, due to the spatially invariant interpolation process and pre-weighting factor adopted in numerical implementation of the algorithms, non-uniform noise propagation have been observed across the field-of-view. In this study, instead of using spatially invariant interpolation, we consider the spatially variant weighting to compensate for the non-uniformity. The simulation study demonstrates the effectiveness of the presented solution.

Paper Details

Date Published: 16 March 2011
PDF: 7 pages
Proc. SPIE 7961, Medical Imaging 2011: Physics of Medical Imaging, 79613K (16 March 2011); doi: 10.1117/12.877870
Show Author Affiliations
Yi Fan, Stony Brook Univ. (United States)
Hongbing Lu, Fourth Military Medical Univ. (China)
Hongbin Zhu, Stony Brook Univ. (United States)
Jing Wang, The Univ. of Texas Southwestern Medical Ctr. at Dallas (United States)
Qin Lin, Stony Brook Univ. (United States)
Zhengrong Liang, Stony Brook Univ. (United States)

Published in SPIE Proceedings Vol. 7961:
Medical Imaging 2011: Physics of Medical Imaging
Norbert J. Pelc; Ehsan Samei; Robert M. Nishikawa, Editor(s)

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