Open AccessRapid calculation of diffuse reflectance from a multilayered model by combination of the white Monte Carlo and adding-doubling methods
Author(s) -
Kenichiro Yoshida,
Izumi Nishidate
Publication year - 2014
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.5.003901
Subject(s) - monte carlo method , anisotropy , optics , diffuse reflection , reflectivity , diffuse reflectance infrared fourier transform , absorption (acoustics) , scattering , materials science , computational physics , physics , chemistry , mathematics , statistics , biochemistry , photocatalysis , catalysis
To rapidly derive a result for diffuse reflectance from a multilayered model that is equivalent to that of a Monte-Carlo simulation (MCS), we propose a combination of a layered white MCS and the adding-doubling method. For slabs with various scattering coefficients assuming a certain anisotropy factor and without absorption, we calculate the transition matrices for light flow with respect to the incident and exit angles. From this series of precalculated transition matrices, we can calculate the transition matrices for the multilayered model with the specific anisotropy factor. The relative errors of the results of this method compared to a conventional MCS were less than 1%. We successfully used this method to estimate the chromophore concentration from the reflectance spectrum of a numerical model of skin and in vivo human skin tissue.