Direction-dependency of binary tomographic reconstruction algorithms

Authors:
László Varga;Péter Balázs;Antal Nagy
Affiliations:
Department of Image Processing and Computer Graphics, University of Szeged, Árpád tér 2, H-6720 Szeged, Hungary;Department of Image Processing and Computer Graphics, University of Szeged, Árpád tér 2, H-6720 Szeged, Hungary;Department of Image Processing and Computer Graphics, University of Szeged, Árpád tér 2, H-6720 Szeged, Hungary
Venue:
Graphical Models
Year:
2011

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Abstract

In this work we study the relation between the quality of a binary tomographic reconstruction and the choice of angles of the projections. We conduct experiments on a set of software phantoms by reconstructing them from different projection sets using three different discrete tomography reconstruction algorithms, and compare the accuracy of the corresponding reconstructions with suitable approaches. To validate our results for possible real-world applications, we conduct the experiments by adding random noise of different characteristics to the simulated projection data, and by applying small topological changes on the phantom images as well. In addition, we also discuss some consequences of the angle-selection dependency and possible practical applications arising from the field of non-destructive testing, too.