Implementation of the zero-padding interpolation technique to improve angular resolution of X-ray tomographic acquisition system
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This paper suggests the implementation of an algorithm that improves the X-ray tomographic reconstruction quality of a parallel acquisition geometry by adding virtual projections to the reconstruction process in order to increase the angular resolution of the measuring device, as in the case of CT scanners. The suggested method is based on an estimated calculation of virtual projections using the zero-padding properties. The obtained results show a significant reduction of the noise effect on the reconstructed image and a remarkable quality improvement despite the use of a rudimentary tomographic device.
Keywordsimage reconstruction acquisition system zero-padding method angular resolution tomograph
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- 2.Sang Don Kim and Seung Eun Lee, “Multi-energy X-ray imaging system using single photon counting,” IRECOS 8 (7), 1517–1521 (2013).Google Scholar
- 3.R. Gordon, “Reconstruction of surfaces from profils,” in Proc. 1st Int Conf. IEEE on Comput Vision (London, 1987), pp. 136–144.Google Scholar
- 5.M. Endo, S. Mori, T. Tsunoo, S. Kandatsu, S. Tanada, H. Aradate, Y. Saito, H. Miyazaki, K. Satoh, S. Matsusita, and M. Kusakabe, “Development and performance evaluation of the first model of 4D CT-scanner,” IEEE Trans. Nucl. Sci. 50 (5) (2003).Google Scholar
- 6.W. Wagner, “Rconstructions from restricted region scan data-new means to reduce the patient dose,” IEEE Trans. Nucl. Sci. 26 (2) (1979).Google Scholar
- 14.P. J. La Riviere and Xiaochuan Pan, “Comparison of angular interpolation approaches in few-view tomography using statistical hypothesis testing,” SPIE 3661, 398–407 (1999).Google Scholar