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  • Title: Image contrast enhancement in angular domain optical imaging of turbid media.
    Author: Vasefi F, Kaminska B, Chapman GH, Carson JJ.
    Journal: Opt Express; 2008 Dec 22; 16(26):21492-504. PubMed ID: 19104579.
    Abstract:
    Imaging structures within a turbid medium using Angular Domain Imaging (ADI) employs an angular filter array to separate weakly scattered photons from those that are highly scattered. At high scattering coefficients, ADI contrast declines due to the large fraction of non-uniform background scattered light still within the acceptance angle. This paper demonstrates various methods to enhance the image contrast in ADI. Experiments where a wedge prism was used to deviate the laser source so that scattered photons could be imaged and subtracted from the image obtained by standard ADI provided the greatest improvement in image contrast.
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