title: Generalized 3D nonlinear transformations for medical imaging: an object-oriented implementation in VTK.
abstract: We have contributed an efficient, object-oriented implementation of 3D nonlinear transformations to the Visualization Toolkit that can be applied to a wide variety of data types, including images and polygonal meshes. The transformations are performed via thin-plate splines or via interpolation of a regular lattice of displacement vectors, and are part of a framework that is easily extensible to other nonlinear transformation types. In this paper we demonstrate application of these transformations in medical imaging in general and image-guided surgery in particular, and present a series of performance benchmarks.
authors.affiliation: Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada N6A 5K8. dgobbi@imaging.roberts.ca
authors.forename: David G
authors.initials: DG
authors.lastname: Gobbi
authors.forename: Terry M
authors.initials: TM
authors.lastname: Peters
mesh_terms: D003952:Diagnostic Imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional; D012984:Software