Improving physical behavior in image registration

Janssens, Guillaume [UCL] Orban de Xivry, Jonathan [UCL] Aerts, Hugo J. W. L. Bosmans, G. Dekker, A.L.A. Macq, Benoît [UCL]

During the past years, many different registration methods have emerged. These usually lead to different results and one faces the problem of choosing the most appropriate. To mitigate this issue, several algorithms have been developed to include prior knowledge in order to force the registration to have a physical behavior. The use of most of these methods in daily practice is cumbersome because of the need to create data-specific meshes. This paper introduces a local convolutive filter in order to iteratively make the result of any registration method converge towards a linear elastic solution. This method was tested and validated on virtual data and on a real silicone rubber cube.