Title :
Object-based 3D binary reconstruction from sparse projections in cone beam CT: Comparison of three projection operators
Author :
Oukili, A. ; Nunes, J.-C. ; Chen, Yuanfeng ; Luo, Lei ; Toumoulin, Christine
Author_Institution :
INSERM, Rennes, France
Abstract :
We present herein a level set approach to the X-ray tomography problem with sparse projection data and study the impact of the projection operator on the binary reconstruction accuracy and computation time. The comparison is carried out on three projectors: the Separable Footprint (Trapeze-Trapeze, SF-TT) [3], a classical Raydriven (RD) and a Simplified version of the Distance-Driven (SDD) projector respectively. The performance, are evaluated for each operator, on a binary 3D Shepp-Logan phantom by varying the number of projections from 5 to 13, and considering noise free and noisy cone beam projection data.
Keywords :
computerised tomography; image reconstruction; medical image processing; phantoms; SDD; SF-TT; Separable Footprint-Trapeze-Trapeze projector; Simplified version of the Distance-Driven projector; X-ray tomography problem; binary 3D Shepp-Logan phantom; binary reconstruction accuracy; classical Raydriven projector; computation time; cone beam CT; level set approach; noise free cone beam projection data; noisy cone beam projection data; object-based 3D binary reconstruction; projection number; projection operator; sparse projection data; Accuracy; Biomedical imaging; Computed tomography; Detectors; Image reconstruction; Level set; Noise; 3D iterative Reconstruction; cone-beam geometry; level set; object-based reconstruction; projection operator;
Conference_Titel :
Biomedical Imaging (ISBI), 2013 IEEE 10th International Symposium on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-6456-0
DOI :
10.1109/ISBI.2013.6556764
