Hybrid Model of Monte Carlo Simulation and Diffusion Theory for Light Reflectance by Turbid Media

Overview

Journal J Opt Soc Am A Opt Image Sci Vis

Specialty Ophthalmology

Date 1993 Aug 1

PMID 8350159

Citations 21

Authors

L Wang

S L Jacques

Affiliations

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Abstract

Light reflectance by semi-infinite turbid media is modeled by a hybrid of Monte Carlo simulation and diffusion theory, which combines the accuracy of Monte Carlo simulation near the source and the speed of diffusion theory distant from the source. For example, when the turbid medium has the following optical properties--absorption coefficient 1 cm-1, scattering coefficient 100 cm-1, anisotropy 0.9, and refractive-index-matched boundary--the hybrid simulation is 7 times faster than the pure Monte Carlo simulation (100,000 photon packets were traced), and the difference between the two simulations is within 2 standard deviations of the Monte Carlo simulation.

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