%0 Conference Paper
%B Conf Proc IEEE Eng Med Biol Soc
%D 2007
%T Backscattered stokes vectors of turbid media: anisotropy factor and reduced scattering coefficient estimation
%A Falconet, J.
%A Sablong, R.
%A Perrin, E.
%A Jaillon, F.
%A Saint-Jalmes, H.
%K categ_st2i
%K imagerie_RMN_optique
%K Méthodes et systèmes en IRM et optique
%X Optical characterization of biological tissues is of real interest to improve medical diagnosis and in particular in the detection of precancerous tissues. The reduced scattering coefficient s and the absorption coefficient a are the most commonly retrieved coefficients. Some methods also allow to obtain the anisotropy factor g, but only few of them are non-invasive. We propose a new non-invasive method allowing the estimation of the anisotropy factor and the reduced scattering coefficient. This method is based on the image analysis of the Q-element of Stokes vector backscattered from the turbid medium. These Q-element images show specific patterns depending on g, and s is determined by the size of the patterns. Therefore the use of Fourier Descriptors (FD) on simulated and experimental data, to discriminate the specific geometrical features of the Q-element, enabled us to determine the anisotropy factor and the scattering coefficient
%B Conf Proc IEEE Eng Med Biol Soc
%V 1
%P 1619–1622
%G eng
%R 10.1109/IEMBS.2007.4352616