Speckle noise reduction in digital holography by slightly rotating the object

Jorge A. Herrera-Ramirez; Diego A. Hincapie-Zuluaga; Jorge Garcia-Sucerquia

doi:10.1117/1.OE.55.12.121714

14 July 2016 Speckle noise reduction in digital holography by slightly rotating the object

Jorge A. Herrera-Ramirez, Diego A. Hincapie-Zuluaga, Jorge Garcia-Sucerquia

Author Affiliations +

Optical Engineering, Vol. 55, Issue 12, 121714 (July 2016). https://doi.org/10.1117/1.OE.55.12.121714

Abstract

This work shows the realization of speckle reduction in the numerical reconstruction of digitally recorded holograms by the superposition of multiple slightly rotated digital holographic images of the object. The superposition of T uncorrelated holographic images reduces the contrast of the speckle noise of the image following the expected 1/T law. The effect of the method on the borders of the resulting image is evaluated by quantifying the utilization of the dynamic range or the contrast between the white and black areas of a regular die. Experimental results validate the feasibility of the proposed method.

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Jorge A. Herrera-Ramirez, Diego A. Hincapie-Zuluaga, and Jorge Garcia-Sucerquia "Speckle noise reduction in digital holography by slightly rotating the object," Optical Engineering 55(12), 121714 (14 July 2016). https://doi.org/10.1117/1.OE.55.12.121714

Published: 14 July 2016

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