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Optical Engineering

Speckle noise reduction in digital holography by multiple holograms
Author(s): Chenggen Quan; Xin Kang; Cho-Jui Tay
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Paper Abstract

An effective method for reducing speckle noise in digital holography is proposed in this paper. The proposed method does not require classical filtering technique; instead it utilizes multiple holograms of an object generated by rotating an illuminating light continuously. The reconstructed hologram intensity fields possess different speckle patterns, and by properly averaging the intensity fields, speckle noise in the reconstructed images is reduced significantly. A merlion sculpture is evaluated and experimental results show that the proposed method is simple and effective in reducing speckle noise in digital holography.

Paper Details

Date Published: 1 November 2007
PDF: 6 pages
Opt. Eng. 46(11) 115801 doi: 10.1117/1.2802060
Published in: Optical Engineering Volume 46, Issue 11
Show Author Affiliations
Chenggen Quan, National Univ. of Singapore (Singapore)
Xin Kang, National Univ. of Singapore (Singapore)
Cho-Jui Tay, National Univ. of Singapore (Singapore)

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