Volumetric Reconstruction Technique for Multiple Parallel Circular Orbits CT

DOI

10.2991/meic-15.2015.33How to use a DOI?

Keywords

computed tomography; reconstruction algorithm; multiple parallel orbits; circular cone-beam orbit; super-short-scan

Abstract

Objective: The aim of this study is to develop a new volumetric reconstruction technique for cone beam computed tomography (CT) system with multiple parallel circular orbits, which can be used to suppress the cone-beam artifacts, permit the reconstruction of limited angle projections and decrease the noise. Methods: This technique includes two steps. Firstly the volume was reconstructed by the super-short-scan algorithm for each orbit. Then the multiple reconstructed volumes were weighted averaging in frequency domain to get the final results. In this step, the overlap situation of the imaging regions was analyzed and parameterized to implement the weighted averaging operation. Numerical simulations with the well-known FORBILD thorax phantom were executed to validate the proposed approach. Results: The slice images of the numerical phantom were reconstructed successfully. It demonstrates that the proposed method has the potential to realize the reconstruction of limited angle projections, decrease cone beam artifacts and improve the noise performance. Conclusion: This new method would be of interest for the development of new CT imaging devices.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jian Fu
AU  - Dekai Fan
PY  - 2015/04
DA  - 2015/04
TI  - Volumetric Reconstruction Technique for Multiple Parallel Circular Orbits CT
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 134
EP  - 137
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.33
DO  - 10.2991/meic-15.2015.33
ID  - Fu2015/04
ER  -