Optical flow detection and imaging

Abstract

In this paper we provide functional forms for Laser Doppler Velocimetry (LDV) and Diffusing Wave Spectroscopy (DWS) based on multiply scattered light by a random distribution of moving anisotropic centres. These results are based on statistical models and applied to single shear flows or random flows, and are compared to Monte Carlo simulations and in vitro experiments in back-scattered geometry. Finally LDV and DWS results are used to characterise red blood cell aggregation and to determine the perfusion flow rate of various human tissues.