Stopping Rules for Algebraic Iterative Reconstruction Methods in Computed Tomography

Autor: Hansen, Per Christian, Jørgensen, Jakob Sauer, Rasmussen, Peter Winkel

Algebraic models for the reconstruction problem in X-ray computed tomography (CT) provide a flexible framework that applies to many measurement geometries. For large-scale problems we need to use iterative solvers, and we need stopping rules for thes

Externí odkaz: http://arxiv.org/abs/2106.10053

A Bayesian approach to CT reconstruction with uncertain geometry.

Autor: Pedersen, Frederik Hagsholm¹ fhape@dtu.dk, Jørgensen, Jakob Sauer¹, Andersen, Martin Skovgaard¹

Publikováno v: Applied Mathematics in Science & Engineering. Dec2023, Vol. 31 Issue 1, p1-18. 18p.

Noise Robustness of a Combined Phase Retrieval and Reconstruction Method for Phase-Contrast Tomography

Autor: Kongskov, Rasmus Dalgas, Jørgensen, Jakob Sauer, Poulsen, Henning Friis, Hansen, Per Christian

Classical reconstruction methods for phase-contrast tomography consist of two stages: phase retrieval and tomographic reconstruction. A novel algebraic method combining the two was suggested by Kostenko et al. (Opt. Express, 21, 12185, 2013) and prel

Externí odkaz: http://arxiv.org/abs/1505.02740

Joint reconstruction with a correlative regularisation technique for multi-channel neutron tomography

Autor: Ametova, Evelina, Burca, Genoveva, Fardell, Gemma, Jørgensen, Jakob Sauer, Papoutsellis, Evangelos, Pasca, Edoardo, Warr, Ryan, Turner, Martin, Lionheart, William R.B., Withers, Philip J.

Publikováno v: Ametova, E, Burca, G, Fardell, G, Jørgensen, J S, Papoutsellis, E, Pasca, E, Warr, R, Turner, M, Lionheart, W R B & Withers, P J 2021, Joint reconstruction with a correlative regularisation technique for multi-channel neutron tomography . in Proceedings of the 16 th International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine . pp. 431--434, 16th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Leuven, Belgium, 19/07/2021 .

These proceedings contain the presented papers at the 16th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine 2021, which was to be held in Leuven, Belgium, but had to be transformed in a virtual m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1202::aeb33e8144d2573ab72a95f0cfaf5197
https://orbit.dtu.dk/en/publications/227a9395-74b9-4136-a26a-0203a1ec49da

Laminography in the Lab: Imaging planar objects using a conventional x-ray CT scanner

Autor: Fisher, Sarah L, Holmes, Danny, Jørgensen, Jakob Sauer, Gajjar, Parmesh, Behnsen, Julia, Lionheart, William R B, Withers, Philip J

Publikováno v: Fisher, S L, Holmes, D, Jørgensen, J S, Gajjar, P, Behnsen, J, Lionheart, W R B & Withers, P J 2019, ' Laminography in the Lab: Imaging planar objects using a conventional x-ray CT scanner ', Measurement Science and Technology, vol. 30, no. 3 . https://doi.org/10.1088/1361-6501/aafcae

Whilst x-ray micro Computed Tomography (CT) machines have developed into a popular laboratory tool for non-destructive 3D imaging of materials, they are not well-suited for scanning flat objects for which there is an increasing demand. Computed Lamin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3818::f54bb4e1ce9ff66aefbacaab136e72c8
https://doi.org/10.1088/1361-6501/aafcae