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Institute of Electrical and Electronics Engineers, IEEE Transactions on Medical Imaging, 2(26), p. 261-269, 2007

DOI: 10.1109/tmi.2006.889743

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Compensation of Some Time Dependent Deformations in Tomography

Journal article published in 2007 by Laurent Desbat, Sébastien Roux, Pierre Grangeat ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

This work concerns 2D + t dynamic tomography. We show that a much larger class of deformations than the affine transforms can be compensated analytically within filtered back projection algorithms in 2D parallel beam and fan beam dynamic tomography. We present numerical experiments on the Shepp and Logan phantom showing that nonaffine deformations can be compensated. A generalization to 3D cone beam tomography is proposed.