Spatial Resolution Analysis for Few-Views Discrete Tomography Based on MART-AP Algorithm | Zendy

Alexander B. Konovalov | Zendy; Vitaly V. Vlasov | Zendy

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Spatial Resolution Analysis for Few-Views Discrete Tomography Based on MART-AP Algorithm

Author(s) -

Alexander B. Konovalov,

Vitaly V. Vlasov

Publication year - 2013

Publication title -

isrn signal processing

Language(s) - English

Resource type - Journals

eISSN - 2090-505X

pISSN - 2090-5041

DOI - 10.1155/2013/356291

Subject(s) - optical transfer function , algorithm , image resolution , projection (relational algebra) , transfer function , resolution (logic) , function (biology) , limit (mathematics) , modulation (music) , tomography , spatial frequency , contrast (vision) , iterative reconstruction , mathematics , computer science , artificial intelligence , physics , optics , mathematical analysis , engineering , evolutionary biology , acoustics , electrical engineering , biology

We study a new MART-AP algorithm of few-views discrete tomography. Its efficiency for high-frequency structure reproduction is investigated in a numerical experiment where we reconstruct a 2D model for the estimation of the spatial resolution limit. We estimate the modulation transfer function of the reconstruction algorithm and compare it with the modulation transfer function of projection distortions. Our results show that MART-AP weakly influences the contrast of spatial structures being reproduced and can be used for high-resolution reconstruction when only a few projections are registered.

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