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Proceedings Paper

Validation of a new algorithm for the recovery of optical properties from turbid samples: GA-MCML against IAD program
Author(s): B. Morales Cruzado; S. A. Prahl; J. A. Delgado Atencio; S. Vázquez y Montiel
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Paper Abstract

Determining optical properties of turbid media has been performed by many research groups using a technique based on iteratively solving the radiative transport equation using the adding doubling technique (IAD). We present a new, alternative method, GA-MCML, for determining optical properties based on a Monte Carlo tech- nique for radiative transport (MCML) guided by a genetics algorithm. The Monte Carlo method is more exible than the adding-doubling technique and can be adapted to a wider range of sample geometries. The genetic algorithm is a robust search technique that is well-adapted to avoiding the local minima in this optimization problem. GA-MCML, has been implemented by modifying the MCML source code to account for two common experimental problems: light losses due to the nite sample size and non-linear integrating sphere eects using Mott's equations. GA-MCML was validated by comparing with IAD method for data acquired at 632.8 nm on a set of phantoms using a single integrating sphere system. The GA-MCML results were equivalent to the IAD technique.

Paper Details

Date Published: 3 November 2011
PDF: 10 pages
Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80118O (3 November 2011); doi: 10.1117/12.902151
Show Author Affiliations
B. Morales Cruzado, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
S. A. Prahl, Oregon Medical Laser Ctr. (United States)
J. A. Delgado Atencio, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
S. Vázquez y Montiel, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)


Published in SPIE Proceedings Vol. 8011:
22nd Congress of the International Commission for Optics: Light for the Development of the World
Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Ramón Rodríguez-Vera; Rufino Díaz-Uribe; Rufino Díaz-Uribe; Rufino Díaz-Uribe, Editor(s)

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