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Fast free-form deformation using graphics processing units.

Computer Methods and Programs in Biomedicine

Algorithms, Computer Graphics, Diagnostic Imaging, Image Processing, Computer-Assisted, methods, Software

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      Abstract

      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. Copyright 2009 Elsevier Ireland Ltd. All rights reserved.

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      Journal
      19818524
      10.1016/j.cmpb.2009.09.002

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