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A Hamiltonian Particle Method for Diffeomorphic Image Registration

by: Stephen Marsland, Robert McLachlan
IPMI, Vol. 20 (2007), pp. 396-407  Key: citeulike:12122056

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Abstract

Diffeomorphic image registration, where images are aligned using diffeomorphic warps, is a popular subject for research in medical image analysis. We introduce a novel algorithm for computing diffeomorphic warps that solves the Euler equations on the diffeomorphism group explicitly, based on a discretisation of the Hamiltonian, rather than using an optimiser. The result is an algorithm that is many times faster than those considered previously.


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