Main features of the tomographic reconstruction algorithm OPED.
This paper discusses the advantages of both geometry of data required for the reconstruction algorithm, orthogonal polynomial expansion on disc (OPED), and polynomial structure of this algorithm. We show that this type of geometry is a result of special parameterisation used within the OPED formalism. The practicability of the OPED data geometry is discussed and it is shown that the data of such geometry can be acquired directly. A method of reducing typical artefacts by using the polynomial structure of the algorithm is summarised as well.
Institute for Radiation Protection, Helmholtz Zentrum Muenchen-German Research Center for Environmental Health, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany. oleg.tischenko@helmholtz-muenchen.de
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Tischenko
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Xu
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Hoeschen
D000465:Algorithms; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D049268:Positron-Emission Tomography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity