Symmetric block-matching registration for the distortion correction of Echo-Planar images

Author

Hedouin, Renaud ; Commowick, Olivier ; Taquet, Maxime ; Bannier, Elise ; Scherrer, Benoit ; Warfield, Simon K. ; Barillot, Christian

Author_Institution

INSERM, INRIA, Rennes, France

fYear

2015

fDate

16-19 April 2015

Firstpage

717

Lastpage

720

Abstract

We introduce a new approach to correct geometric and intensity 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 transformations between blocks and a symmetric optimization scheme to ensure an opposite symmetric transformation. We present results of our algorithm showing its ability to robustly recover EPI distortion while obtaining sharper results than the popular TOPUP algorithm.

Keywords

biomedical MRI; image coding; image matching; image registration; medical image processing; optimisation; EPI geometric distortion correction; EPI intensity distortion correction; TOPUP algorithm; phase encoding directions; symmetric block-matching registration algorithm; symmetric optimization scheme; Correlation; Distortion; Magnetic resonance imaging; Measurement; Robustness; Smoothing methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Imaging (ISBI), 2015 IEEE 12th International Symposium on

Conference_Location

New York, NY

Type

conf

DOI

10.1109/ISBI.2015.7163973

Filename

7163973