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Accelerated boundary element method for diffuse optical imaging.

Elisee, J; Bonnet, M; Arridge, S; (2011) Accelerated boundary element method for diffuse optical imaging. Opt Lett , 36 (20) 4101 - 4103.

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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 are 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.

Title:Accelerated boundary element method for diffuse optical imaging.
Location:United States
Keywords:Algorithms, Computer Simulation, Diffusion, Finite Element Analysis, Head, Humans, Image Processing, Computer-Assisted, Light, Models, Theoretical, Phantoms, Imaging, Scattering, Radiation, Tomography, Optical
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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