Physically correct mesh manipulation in multi-level free-form deformation-based nonrigid registration

C Castro-Pareja; R Shekhar

doi:10.1109/IEMBS.2004.1403508

Physically correct mesh manipulation in multi-level free-form deformation-based nonrigid registration

Conf Proc IEEE Eng Med Biol Soc. 2004:2004:1687-90. doi: 10.1109/IEMBS.2004.1403508.

Authors

C Castro-Pareja¹, R Shekhar

Affiliation

¹ Department of Electrical and Computer Engineering, Ohio State University, Columbus, OH, USA.

PMID: 17272028
DOI: 10.1109/IEMBS.2004.1403508

Abstract

We present a new solution to prevent mesh folding artifacts common in free-form deformation-based nonrigid registration. Our algorithm imposes linear bounds on the search space of control point locations, thereby enabling the use of constrained optimization algorithms. We also introduce a new method for controlling the mesh rigidity, based on maximum voxel displacement. Our method allows local control of the deformation, based on a priori knowledge of the magnitude of possible local deformations.