A novel noise suppression solution in cone-beam CT images

Yi Fan; Hongbing Lu; Hongbin Zhu; Jing Wang; Qin Lin; Zhengrong Liang

doi:10.1117/12.877870

16 March 2011 A novel noise suppression solution in cone-beam CT images

Yi Fan, Hongbing Lu, Hongbin Zhu, Jing Wang, Qin Lin, Zhengrong Liang

Proceedings Volume 7961, Medical Imaging 2011: Physics of Medical Imaging; 79613K (2011) https://doi.org/10.1117/12.877870
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

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.

Citation Download Citation

Yi Fan, Hongbing Lu, Hongbin Zhu, Jing Wang, Qin Lin, and 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); https://doi.org/10.1117/12.877870

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