articleFrontiers in NeuroinformaticsJan 1, 2013GOLD OA

Fast parallel image registration on CPU and GPU for diagnostic classification of Alzheimer's disease

DPDenis P. Shamonin

Leiden University Medical Center

PubMed
Indexed incrossrefdoajpubmed

Abstract

Nonrigid image registration is an important, but time-consuming task in medical image analysis. In typical neuroimaging studies, multiple image registrations are performed, i.e., for atlas-based segmentation or template construction. Faster image registration routines would therefore be beneficial. In this paper we explore acceleration of the image registration package elastix by a combination of several techniques: (i) parallelization on the CPU, to speed up the cost function derivative calculation; (ii) parallelization on the GPU building on and extending the OpenCL framework from ITKv4, to speed up the Gaussian pyramid computation and the image resampling step; (iii) exploitation of certain properties of…

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602
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16.02
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100%
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48
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Authors

1

Topics & keywords

Topics
Keywords
  • Computer science
  • Speedup
  • Artificial intelligence
  • Voxel
  • Image registration
  • Resampling
  • Pattern recognition (psychology)
  • Contextual image classification
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