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Diffeomorphic demons: Efficient non-parametric image registration.

Tom Vercauteren 1, 2, * Xavier Pennec 1 Aymeric Perchant 2 Nicholas Ayache 1
* Corresponding author
1 ASCLEPIOS - Analysis and Simulation of Biomedical Images
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : We propose an efficient non-parametric diffeomorphic image registration algorithm based on Thirion's demons algorithm. In the first part of this paper, we show that Thirion's demons algorithm can be seen as an optimization procedure on the entire space of displacement fields. We provide strong theoretical roots to the different variants of Thirion's demons algorithm. This analysis predicts a theoretical advantage for the symmetric forces variant of the demons algorithm. We show on controlled experiments that this advantage is confirmed in practice and yields a faster convergence. In the second part of this paper, we adapt the optimization procedure underlying the demons algorithm to a space of diffeomorphic transformations. In contrast to many diffeomorphic registration algorithms, our solution is computationally efficient since in practice it only replaces an addition of displacement fields by a few compositions. Our experiments show that in addition to being diffeomorphic, our algorithm provides results that are similar to the ones from the demons algorithm but with transformations that are much smoother and closer to the gold standard, available in controlled experiments, in terms of Jacobians.
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https://www.hal.inserm.fr/inserm-00349600
Contributor : Tom Vercauteren <>
Submitted on : Friday, January 2, 2009 - 6:45:00 PM
Last modification on : Monday, August 31, 2020 - 1:06:16 PM
Long-term archiving on: : Tuesday, June 8, 2010 - 6:26:18 PM

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Tom Vercauteren, Xavier Pennec, Aymeric Perchant, Nicholas Ayache. Diffeomorphic demons: Efficient non-parametric image registration.. NeuroImage, Elsevier, 2009, 45 (1), Supplement 1, Pages S61-S72. ⟨10.1016/j.neuroimage.2008.10.040⟩. ⟨inserm-00349600⟩

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