Abstract

A transmission point spread function characterizes the spatial distribution of light transmitted through a turbid slab. Because of scatter due to turbidity, light diffuses and the distribution of photons on exiting the slab may be very different from that upon entering the slab. Using the multiple-path model of reflection and transmission, the transmission point spread function and related modulation transfer function are derived. The analytic expression for the point spread function is compared to a Monte Carlo simulation of photon transmission. The transmission modulation transfer function is used to define a measure of visibility through the turbid slab—a contrast transfer function.

© 2019 Optical Society of America

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