28585 articles – 22073 Notices  [english version]

hal-00624462, version 1

An Accelerated Boundary Element Method for Diffuse Optical Imaging

Josias Elisee 1, Marc Bonnet () 2, Simon Arridge 1

Optics Letters 36 (2011) 4101-4103

Résumé : The boundary element method (BEM) is a useful tool in Diffuse Optical Imaging (DOI) when modelling large optical regions whose parameters are piecewise constant, but is computationally expensive. We present here an acceleration technique, the single-level Fast Multipole Method, for a highly lossy medium. The enhanced practicability of the BEM in DOI is demonstrated through test examples on single-layer problems, where order of magnitude reduction factors on solution time are achieved, and on a realistic three-layer model of the neonatal head. Our experimental results agree very closely with theoretical predictions of computational complexity.

  • 1 :  Centre for Medical Image Computing (CMIC)
  • University College of London (UCL)
  • 2 :  POEMS (CNRS:UMR 7231 - ENSTA - INRIA Rocquencourt)
  • INRIA – CNRS : UMR7231 – ENSTA ParisTech
  • Domaine : Physique/Mécanique/Mécanique des solides
    Sciences de l'ingénieur/Mécanique/Mécanique des solides
 
  • hal-00624462, version 1
  • http://hal.archives-ouvertes.fr/hal-00624462
  • oai:hal.archives-ouvertes.fr:hal-00624462
  • Contributeur : Marc Bonnet <>
  • Soumis le : Samedi 17 Septembre 2011, 22:58:41
  • Dernière modification le : Jeudi 13 Octobre 2011, 20:06:26