title: Physically correct mesh manipulation in multi-level free-form deformation-based nonrigid registration.
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.
authors.affiliation: Department of Electrical and Computer Engineering, Ohio State University, Columbus, OH, USA.
authors.forename: C
authors.initials: C
authors.lastname: Castro-Pareja
authors.forename: R
authors.initials: R
authors.lastname: Shekhar