Multi-modal image registration using polynomial expansion and mutual information

Authors:
Daniel Forsberg;Gunnar Farnebäck;Hans Knutsson;Carl-Fredrik Westin
Affiliations:
Department of Biomedical Engineering, Linköping University, Sweden, Center for Medical Image Science and Visualization, Linköping University, Sweden, Sectra Imtec, Linköping, Sweden;Department of Biomedical Engineering, Linköping University, Sweden;Department of Biomedical Engineering, Linköping University, Sweden, Center for Medical Image Science and Visualization, Linköping University, Sweden;Laboratory of Mathematics in Imaging, Brigham Women's Hospital, Harvard Medical School, Boston, MA
Venue:
WBIR'12 Proceedings of the 5th international conference on Biomedical Image Registration
Year:
2012

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Abstract

The use of polynomial expansion in image registration has previously been shown to be beneficial due to fast convergence and high accuracy. However, earlier work has only been for mono-modal image registration. In this work, it is shown how polynomial expansion and mutual information can be linked to achieve multi-modal image registration. The proposed method is evaluated using MRI data and shown to have a satisfactory accuracy while not increasing the computation time significantly.