A response function for image transmission in a medium containing discrete, isotropic scatterers is derived in a form analogous to the point-spread function of media with continuous variations of refractive index. A primary-scattering approximation is used with a geometry similar to that employed in determining telephotometry error. The analysis is substantiated by means of an experiment involving a dispersion of an acrylic sol in water.
P. S. GREEN, "Image-Spreading Function in a Medium Containing Discrete, Isotropic Scatterers," J. Opt. Soc. Am. 56, 607-609 (1966)