It is well known that the interaction between coherent monochromatic radiation and a scattering medium induce a speckle phenomenon. The direct exposure of a photographic film, without a lens to the transmitted radiation, gives speckle pattern. The main problem lies in the determination of parameters which can efficiently characterize this pattern and can be correlated with the optical properties of the medium. In this paper, we present a circular statistics approach to differentiate media.

© 2007 SPIE

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