Paschalis, P.Argyrou, M.Maintas, D.Stiliaris, E.A new approach for tomographic image reconstruction from projections using Artificial Neural Network (ANN) techniques is presented in this work. The design of the proposed reconstruction system is based on a simple but efficient network architecture, which best utilizes all available input information. Due to the computational complexity, which grows quadratically with the image size, the training phase of the system is characterized by relatively large CPU times. The trained network, on the contrary, is able to provide all necessary information in a quick and efficient way giving results comparable to other time consuming iterative reconstruction algorithms. The performance of the network studied with a large number of software phantoms is directly compared to the well known Algebraic Reconstruction Technique (ART). For a given image and projections size, the role of the hidden layers in the network architecture is examined and the quality dependence of the reconstructed image on the size of the geometrical patterns used in the training phase is also investigated.application/pdf10.12681/hnps.2542https://eproceedings.epublishing.ekt.gr/index.php/hnps/article/view/2542engHellenic Nuclear Physics Society (HNPS)Πνευματική ιδιοκτησία (c) 2019 M. Argyrou, P. Paschalis, D. Maintas, E. StiliarisAnnual Symposium of the Hellenic Nuclear Physics Society2654-00882654-007XAnnual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 18 (2010): HNPS2010; 89-94HNPS Advances in Nuclear Physics; Vol. 18 (2010): HNPS2010; 89-94Tomographic Image Reconstruction based on Artificial Neural Network (ANN) Techniquesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion2019-11-23Πυρηνική φυσικήNuclear Physicsisi - Physics, Nuclear includes resources on the study of nuclear structure, decay, radioactivity, reactions, and scattering. Resources in this category focus on low-energy physics. High-energy physics is covered in the PHYSICS, PARTICLES & FIELDS category.Άρθρο συνεδρίουConference articleΕπιστημονικό άρθροScientific articleHellenic Nuclear Physics SocietyGreek Aggregator OpenArchives.gr | National Documentation Centre (EKT)other