30 August 2006 Holographic spectral image discrimination and segmentation
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Holographic spectroscopy has been a subject of continuing interest for several decades. Recently, the use of optical filters to allow fast discrimination and segmentation of images has been shown to be very powerful. Conventional filters are restricted to being nonnegative, but that restriction does not apply to holographic filters. So more useful filters can be designed and used holographically to produce a pixel-by-pixel spectral image analyzer.
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H. John Caulfield, H. John Caulfield, Jian Fu, Jian Fu, } "Holographic spectral image discrimination and segmentation", Proc. SPIE 6311, Optical Information Systems IV, 63111J (30 August 2006); doi: 10.1117/12.686735; https://doi.org/10.1117/12.686735

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