Computing the light distribution in turbid media for different scattering and absorption coefficients from a single Monte Carlo simulation

Pierre Marquet; Frederic P. Bevilacqua; Christian D. Depeursinge

doi:10.1117/12.228671

18 December 1995 Computing the light distribution in turbid media for different scattering and absorption coefficients from a single Monte Carlo simulation

Pierre Marquet, Frederic P. Bevilacqua, Christian D. Depeursinge

Author Affiliations +

Proceedings Volume 2626, Photon Propagation in Tissues; (1995) https://doi.org/10.1117/12.228671
Event: BiOS Europe '95, 1995, Barcelona, Spain

Abstract

We present a method that uses a single Monte Carlo simulation (modeling the light distribution in a turbid media) to obtain a set of results for different optical coefficients. This approach eliminates the repetition of simulations for each different parameter. It is based on an adequate formulation of the radiance, expressed as a function of two probability distributions. The first depends only on the phase function and the geometry, while the second one depends only on the optical coefficients. This procedure requires the storage of the number of collisions and the total pathlength of each photon. An example of the applicability of this method is shown, for which an important spare of computer time has been achieved. The main drawback of the method is a loss of convergence which limits its applicability. This effect is discussed as a function of the optical coefficients.

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Pierre Marquet, Frederic P. Bevilacqua, and Christian D. Depeursinge "Computing the light distribution in turbid media for different scattering and absorption coefficients from a single Monte Carlo simulation", Proc. SPIE 2626, Photon Propagation in Tissues, (18 December 1995); https://doi.org/10.1117/12.228671

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