title: Exact Weighted-FBP Algorithm for Three-Orthogonal-Circular Scanning Reconstruction.
abstract: Recently, 3D image fusion reconstruction using a FDK algorithm along three-orthogonal circular isocentric orbits has been proposed. On the other hand, we know that 3D image reconstruction based on three-orthogonal circular isocentric orbits is sufficient in the sense of Tuy data sufficiency condition. Therefore the datum obtained from three-orthogonal circular isocentric orbits can derive an exact reconstruction algorithm. In this paper, an exact weighted-FBP algorithm with three-orthogonal circular isocentric orbits is derived by means of Katsevich's equations of filtering lines based on a circle trajectory and a modified weighted form of Tuy's reconstruction scheme.
authors.affiliation: College of Computer, Sichuan University, 610065, Chengdu, P. R. China.
authors.forename: Hongli
authors.initials: H
authors.lastname: Hu
authors.forename: Jianzhou
authors.initials: J
authors.lastname: Zhang