Coherent and polarization imaging: novel approaches in tissue diagnostics by laser light scattering

摘要

Abstract: Different techniques for diagnostics and visualizationof the inhomogeneous scattering media by means of thestatistical analysis of spatial-temporal fluctuationsof scattered light are considered: (1) polarizationdiagnostics and imaging based on the application of thepolarization degree as visualization parameter; (2)imaging techniques on the basis of measurements of thecontrast of multiply scattered speckles induced bypartially coherent light scattering in the probedobject; (3) modification of the speckle imagingtechnique based on the statistical analysis oftime-integrated electronic images of the specklepatterns under coherent light illumination. Comparisonof these methods with traditional approaches to thediagnostics and imaging of macroscopicallyinhomogeneous multiply scattering objects is made.Experimental results obtained with phantom scatteringmedia and illustrating the potentialities of thediscussed approaches are presented.!14