
Proceedings Paper
FullMonte: a framework for high-performance Monte Carlo simulation of light through turbid media with complex geometryFormat | Member Price | Non-Member Price |
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Paper Abstract
Emerging clinical applications including bioluminescence imaging require fast and accurate modelling of light
propagation through turbid media with complex geometries. Monte Carlo simulations are widely recognized as
the standard for high-quality modelling of light propagation in turbid media, albeit with high computational
requirements. We present FullMonte: a flexible, extensible software framework for Monte Carlo modelling of
light transport from extended sources through general 3D turbid media including anisotropic scattering and
refractive index changes. The problem geometry is expressed using a tetrahedral mesh, giving accurate surface
normals and avoiding artifacts introduced by voxel approaches.
The software uses multithreading, Intel SSE vector instructions, and optimized data structures. It incorporates
novel hardware-friendly performance optimizations that are also useful for software implementations.
Results and performance are compared against existing implementations. We present a discussion of current
state-of-the-art algorithms and accelerated implementations of the modelling problem. A new parameter permitting
accuracy-performance tradeoffs is also shown which has significant implications including performance
gains of over 25% for real applications.
The advantages and limitations of both CPU and GPU implementations are discussed, with observations
important to future advances. We also point the way towards custom hardware implementations with potentially
large gains in performance and energy efficiency.
Paper Details
Date Published: 21 February 2013
PDF: 14 pages
Proc. SPIE 8592, Biomedical Applications of Light Scattering VII, 85920H (21 February 2013); doi: 10.1117/12.2002933
Published in SPIE Proceedings Vol. 8592:
Biomedical Applications of Light Scattering VII
Adam P. Wax; Vadim Backman, Editor(s)
PDF: 14 pages
Proc. SPIE 8592, Biomedical Applications of Light Scattering VII, 85920H (21 February 2013); doi: 10.1117/12.2002933
Show Author Affiliations
Vaughn Betz, Univ. of Toronto (Canada)
Published in SPIE Proceedings Vol. 8592:
Biomedical Applications of Light Scattering VII
Adam P. Wax; Vadim Backman, Editor(s)
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