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Optical Engineering

Speckle noise reduction in digital holography by slightly rotating the object
Author(s): Jorge A. Herrera-Ramirez; Diego A. Hincapie-Zuluaga; Jorge Garcia-Sucerquia
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Paper 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.

Paper Details

Date Published: 14 July 2016
PDF: 6 pages
Opt. Eng. 55(12) 121714 doi: 10.1117/1.OE.55.12.121714
Published in: Optical Engineering Volume 55, Issue 12
Show Author Affiliations
Jorge A. Herrera-Ramirez, Instituto Tecnológico Metropolitano (Colombia)
Diego A. Hincapie-Zuluaga, Instituto Tecnológico Metropolitano (Colombia)
Univ. Nacional de Colombia (Colombia)
Jorge Garcia-Sucerquia, Univ. Nacional de Colombia Sede Medellín (Colombia)

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