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 free-form 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 min 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.
Modat
Marc
M
Centre for Medical Image Computing, Department of Medical Physics and Bioengineering, University College London, London, UK. m.modat@ucl.ac.uk
Ridgway
Gerard R
GR
Taylor
Zeike A
ZA
Lehmann
Manja
M
Barnes
Josephine
J
Hawkes
David J
DJ
Fox
Nick C
NC
Ourselin
Sébastien
S
D000465:Algorithms; D003196:Computer Graphics; D003952:Diagnostic Imaging; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D012984:Software