A Reconstruction Algorithm for Triple-Source Helical Cone-Beam CT.
For fast and exact CT reconstruction, we have conceptualized a triple-source helical cone-beam scanning mode, and formulated a backprojected-filtration (BPF) algorithm for that imaging geometry. The algorithm uses data from the three inter-helix PI-arcs related to the inter-helix PI-lines and the minimum detection windows defined for the triple-source configuration. The proof of the formula is based on Tuy's inversion formula and the geometric relations of inter-helix PI-lines.
Zhao
Jun
J
Department of Biomedical Engineering, Shanghai, Jiao Tong University, Shanghai, 200030, China (phone: 86-21- 52540226; e-mail: junzhao@sjtu.edu.cn).
Jiang
Ming
M
Zhuang
Tiange
T
Wang
Ge
G