A hierarchical parametric algorithm for deformable multimodal image registration

Pierre Hellier

doi:10.1016/j.cmpb.2004.01.002

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A hierarchical parametric algorithm for deformable multimodal image registration

2004-08-01

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Pierre Hellier

Christian Barillot

DOI：10.1016/j.cmpb.2004.01.002

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Abstract

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Image fusion is of utmost importance for many applications in image analysis. Particularly in medical imaging, images of different modalities are necessary because they provide complementary information that must be merged for an optimal use. The fusion of these images, which can be achieved through a registration process, makes it possible to superimpose all available information on the same frame. In many cases, a rigid transformation is sufficient to align correctly the images. However, there are cases where a non-rigid transformation is needed: geometrical distortions present in one image, non-rigid motion, etc. The purpose of this paper is to propose a generic method to account for these deformations in case of multimodal. images. We have applied the algorithm in the particular context of 3D medical images and present results on simulated and real data. (C) 2004 Elsevier Ireland Ltd. All rights reserved.

Keywords:

deformable image registration

multimodal fusion

geometrical distortions

mutual information

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