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Defocus noise suppression with combined frame difference and connected component methods in optical scanning holography

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Abstract

Random phase masks can transform the defocus noise into a speckle-like pattern in optical scanning holography (OSH). In this Letter, we presented a speckle reduction based on combined frame difference and connected component method in a random phase-coded OSH system. The image quality of the reconstructed sections is improved with better visibility.

© 2015 Optical Society of America

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