1 November 2007 Speckle noise reduction in digital holography by multiple holograms
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Optical Engineering, 46(11), 115801 (2007). doi:10.1117/1.2802060
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.
Chenggen Quan, Xin Kang, Cho-Jui Tay, "Speckle noise reduction in digital holography by multiple holograms," Optical Engineering 46(11), 115801 (1 November 2007). http://dx.doi.org/10.1117/1.2802060
JOURNAL ARTICLE
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KEYWORDS
Holograms

Speckle

Digital holography

3D image reconstruction

Speckle pattern

Denoising

CCD image sensors

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