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Journal of Inverse and Ill-posed Problems

Editor-in-Chief: Kabanikhin, Sergey I.


IMPACT FACTOR 2017: 0.941
5-year IMPACT FACTOR: 0.953

CiteScore 2017: 0.91

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Source Normalized Impact per Paper (SNIP) 2017: 1.022

Mathematical Citation Quotient (MCQ) 2017: 0.49

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1569-3945
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Volume 22, Issue 3

Issues

Reconstruction of dynamic objects with affine deformations in computerized tomography

Bernadette Hahn
Published Online: 2013-12-03 | DOI: https://doi.org/10.1515/jip-2012-0094

Abstract.

The data acquisition in computerized tomography takes a certain amount of time since the x-ray source has to be rotated around the specimen. An object that changes during the scanning causes inconsistent data sets. To avoid the motion artefacts in reconstructions, the algorithm has to take the dynamic behavior of the specimen into account. In this context, some a priori information about the movement is required. A reconstruction method is proposed that compensates for the motion with a special focus on affine deformations. It also permits the combination of reconstruction and image analysis tools to extract features of the object without motion artefacts. The algorithm is validated with a numerical example from medical imaging.

Keywords: Dynamic computerized tomography; motion compensation; approximate inverse; feature reconstruction

MSC: 45Q05; 65R10; 65R32

About the article

Received: 2012-12-05

Published Online: 2013-12-03

Published in Print: 2014-06-01


Citation Information: Journal of Inverse and Ill-posed Problems, Volume 22, Issue 3, Pages 323–339, ISSN (Online) 1569-3945, ISSN (Print) 0928-0219, DOI: https://doi.org/10.1515/jip-2012-0094.

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