Center Determination for Cone-Beam X-ray Tomography

  • Narkbuakaew, W. (Department of Electronics, Faculty of Engineering, and Research Center for Communications and Technology (ReCCIT) King Mongkut's Institute of Technology Ladkrabang) ;
  • Ngamanekrat, S. (Department of Electronics, Faculty of Engineering, and Research Center for Communications and Technology (ReCCIT) King Mongkut's Institute of Technology Ladkrabang) ;
  • Withayachumnankul, W. (Department of Electronics, Faculty of Engineering, and Research Center for Communications and Technology (ReCCIT) King Mongkut's Institute of Technology Ladkrabang) ;
  • Pintavirooj, C. (Department of Electronics, Faculty of Engineering, and Research Center for Communications and Technology (ReCCIT) King Mongkut's Institute of Technology Ladkrabang) ;
  • Sangworasil, M. (Department of Electronics, Faculty of Engineering, and Research Center for Communications and Technology (ReCCIT) King Mongkut's Institute of Technology Ladkrabang)
  • Published : 2004.08.25

Abstract

In order to render 3D model of the bone, the stack of cross-sectional images must be reconstructed from a series of X-ray radiographs, served as the projections. In the case where the distance between x-ray source and detector is not infinite, image reconstruction from projection based on parallel-beam geometry provides an error in the cross-sectional image. In such case, image reconstruction from projection based on conebeam geometry must be exercised instead. This paper is devoted to the determination of detector center for SART conebeam Technique which is critically effect the performance of the resulting 3D modeling.

Keywords