Experimental Study on Multivalued Phantoms Using Different Filters in the DART Algorithm

Issue title: Tomography and Applications

Article type: Research Article

Authors: Nagy, Antal^{a; *}

Affiliations: [a] Department of Image Processing and Computer Graphics, University of Szeged, Árpád tér 2, 6720, Szeged, Hungary. nagya@inf.u-szeged.hu

Note: [*] Address for correspondence: Antal Nagy, Árpád tér 2, 6720, Szeged, Hungary

Abstract: In our previous paper [10] we proposed new variants of the Discrete Algebraic Reconstruction Technique with combined filtering technique and performed experiments on binary software phantoms within a new test framework to investigate the effect of the filters. Continuing our work, in this paper we extend our study to multivalued phantoms for a deeper investigation in this field. We create a new test phantom set with different intensity levels and perform a comprehensive experimental study. The results are evaluated with Relative Mean Error which is extended to multivalued discrete phantoms. We use a ranking system to create different views to our quantitative data. Finally, the achievements are discussed.

Keywords: Tomography, Discrete Tomography, DART, Filtering, Non-Destructive Testing

DOI: 10.3233/FI-2015-1272

Journal: Fundamenta Informaticae, vol. 141, no. 2-3, pp. 207-231, 2015