Symmetric Block-Matching Registration for the Distortion Correction of Echo-Planar Images

We introduce a new approach to correct geometric and in- tensity distortion of Echo Planar Images (EPI) from images acquired with opposite phase encoding directions. A new symmetric block-matching registration algorithm has been developed for this purpose relying on new adapted transfor- mations between blocks and a symmetric optimization scheme to ensure an opposite symmetric transformation. We present results of our algorithm showing its ability to robustly re- cover EPI distortion while obtaining sharper results than the popular TOPUP algorithm.

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Neurosciences [q-bio.NC]

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Olivier Commowick : Connectez-vous pour contacter le contributeur

https://inserm.hal.science/inserm-01118766

Soumis le : mercredi 6 mai 2015-15:02:42

Dernière modification le : jeudi 26 septembre 2024-11:20:05

Archivage à long terme le : mercredi 19 avril 2017-18:24:51

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inserm-01118766 , version 1 (06-05-2015)

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HAL Id : inserm-01118766 , version 1

Citer

Renaud Hedouin, Olivier Commowick, Maxime Taquet, Elise Bannier, Benoit Scherrer, et al.. Symmetric Block-Matching Registration for the Distortion Correction of Echo-Planar Images. IEEE International Symposium on Biomedical Imaging (ISBI), Apr 2015, New York, United States. pp.717-720. ⟨inserm-01118766⟩

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