16 March 2011 A novel noise suppression solution in cone-beam CT images
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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.
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Yi Fan, Hongbing Lu, Hongbin Zhu, Jing Wang, Qin Lin, Zhengrong Liang, "A novel noise suppression solution in cone-beam CT images", Proc. SPIE 7961, Medical Imaging 2011: Physics of Medical Imaging, 79613K (16 March 2011); doi: 10.1117/12.877870; https://doi.org/10.1117/12.877870
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