L2 Similarity Metrics for Diffusion Multi-Compartment Model Images Registration

Olivier Commowick 1, * Renaud Hedouin 1 Emmanuel Caruyer 1 Christian Barillot 1
* Auteur correspondant
1 VisAGeS - Vision, Action et Gestion d'informations en Santé
INSERM - Institut National de la Santé et de la Recherche Médicale : U1228, Inria Rennes – Bretagne Atlantique , IRISA_D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
Abstract : Diffusion multi-compartment models (MCM) allow for a fine and comprehensive study of the white matter microstructure. Non linear registration of MCM images may provide valuable information on the brain e.g. through population comparison. State-of-the-art MCM registration however relies on pairing-based similarity measures where the one-to-one mapping of MCM compartments is required. This approach leads to non differentiabilties or discontinuities, which may turn into poorer registration. Moreover, these measures are often specific to one MCM compartment model. We propose two new MCM similarity measures based on the space of square integrable functions, applied to MCM characteristic functions. These measures are pairing-free and agnostic to compartment types. We derive their analytic expressions for multi-tensor models and propose a spherical approximation for more complex models. Evaluation is performed on synthetic deformations and inter-subject registration, demonstrating the robustness of the proposed measures.
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Communication dans un congrès
20th International Conference on Medical Image Computing and Computer Assisted Intervention - MICCAI, Sep 2017, Québec, Canada. 10433, pp.257-265, 2017, LNCS. 〈10.1007/978-3-319-66182-7_30〉
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Soumis le : mercredi 5 juillet 2017 - 11:00:06
Dernière modification le : mercredi 16 mai 2018 - 11:24:14

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Olivier Commowick, Renaud Hedouin, Emmanuel Caruyer, Christian Barillot. L2 Similarity Metrics for Diffusion Multi-Compartment Model Images Registration. 20th International Conference on Medical Image Computing and Computer Assisted Intervention - MICCAI, Sep 2017, Québec, Canada. 10433, pp.257-265, 2017, LNCS. 〈10.1007/978-3-319-66182-7_30〉. 〈inserm-01556476〉

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