Cone-Beam X-Ray Tomography with Arbitrary-Orientation X-ray Tube

X-ray computed tomography is a technique to reconstruct an image of trans-axial slab of the object from a series of X-ray radiographs taken at a prior-known angle. Sequences of X-ray radiographs are served as two-dimensional projection data for a 3D tomography. The most popular Feldkamp algorithm which is based on filtered backprojection (FBP) approaches has shown to perform well for 3D reconstruction. Conventional X-ray computed tomography was implemented on a c-arm X-ray apparatus where the X-ray tube and detector is capable of rotating to capture radiograph at any specific angle. In this paper, the concept of X-ray computed tomography for non c-arm X-ray apparatus was presented. In the purposed method, the cross-section of the object can be reconstructed from the multiple-viewed radiographs taken with arbitrary orientation of X-ray tube. The simulation results demonstrated the potential of such method