Multiresolution Elastic Registration of Head Magnetic Resonance Images

K.P. Camilleri, P. Borg, S.G. Fabri, J. Muscat (Malta), and C.J. James (UK)


Medical Image Processing, Signal Processing


A non-rigid body registration algorithm was proposed by Kovalev and Petrou [1] where the image grid was deformed by localised deformation operators in order to optimise a global cost function. In this paper, we propose to implement this non-rigid body registration over a multiresolution pyramid in order to obtain large-scale deformations at the coarse levels and fine-detail deformations at the finer levels, resulting in faster convergence.

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