Fast free-form deformation using graphics processing units

A large number of algorithms have been developed to perform non-rigid registration and it is a tool commonly used in medical image analysis. The FreeForm Deformation algorithm is a well-established technique, but is extremely time consuming. In this paper we present a parallel-friendly formulation of the algorithm suitable for Graphics Processing Unit execution. Using our approach we perform registration of T1-weighted MR images in less than 1 minute and show the same level of accuracy as a classical serial implementation when performing segmentation propagation. This technology could be of significant utility in time-critical applications such as image-guided interventions, or in the processing of large data sets. Key words: GPU, Non-Rigid Registration, Free-Form Deformation, Normalised Mutual Information Preprint submitted to Computer Methods and Programs in Biomedicine August 28, 2009 

• Type: Journal
• Year: 2010
• Where: CMPB
• Authors: Marc Modat, Gerard R. Ridgway, Zeike A. Taylor, Manja Lehmann, Josephine Barnes, David J. Hawkes, Nick C. Fox, Sébastien Ourselin
• Keywords: Algorithm, CMPB 2010, FreeForm Deformation Algorithm, Non-rigid Registration