Scattering coefficient determination in turbid media with backscattered polarized light.
A simple empirical method is presented to determine the scattering coefficient mu' s from backscattered polarized images of turbid media. It uses the ratio, pixel by pixel, of two images that are the second and the first backscattered Stokes parameter images Q and I, respectively. Taking this image ratio, then integrating it over the azimuth angle, we get a function depending on the distance from the light entrance point. This function has a maximum. Using Monte Carlo simulations, for a fixed reduced scattering coefficient mu s and for an anisotropy factor g varying between 0 and 0.8, it is found a linear relationship between the scattering coefficient mu s and the inverse of the maximum position of this function.
Jaillon
Franck
F
Université Claude Bernard Lyon, 1 CNRS UMR 5012-CPE, Laboratoire de Résonance Magnétique Nucléaire, La Doua 3, rue Victor Grignard, 69616 Villeurbanne, France.
Saint-Jalmes
Hervé
H
D000465:Algorithms; D003198:Computer Simulation; D003238:Connective Tissue / Q000033:anatomy & histology* / Q000502:physiology*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008027:Light; D008859:Microscopy, Polarization / Q000379:methods*; D008954:Models, Biological; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation