30 May 2002 Perceptual image analysis for graphical rendering and digital libraries
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When fabricating a large area holographic diffuser by cascading hologram of diffusion patterns with specified area, it was found that a fluctuation of diffraction intensity occurred at the boundaries of the two adjacent exposed areas. It was affirmed experimentally that this problem could be alleviated by controlling the intensity distribution of reference laser beam around the boundary of each exposure area. Using this method, the fluctuation was reduced considerably. For better compensation of the non-uniformity a theoretical analysis for the diffusion process of photopolymer is discussed and compared with the experimental results.
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John C. Dalton, John C. Dalton, "Perceptual image analysis for graphical rendering and digital libraries", Proc. SPIE 4662, Human Vision and Electronic Imaging VII, (30 May 2002); doi: 10.1117/12.469518; https://doi.org/10.1117/12.469518

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