Molony, Karen M. and Maycock, Jonathan and McDonald, John B and Hennelly, Bryan M. and Naughton, Thomas J. (2008) A Comparison of Wavelet Analysis Techniques in Digital Holograms. Proceedings of SPIE - The International Society for Optical Engineering 6994, 6994.

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Abstract

This study explores the effectiveness of wavelet analysis techniques on digital holograms of real-world 3D objects. Stationary and discrete wavelet transform techniques have been applied for noise reduction and compared. Noise is a common problem in image analysis and successful reduction of noise without degradation of content is difficult to achieve. These wavelet transform denoising techniques are contrasted with traditional noise reduction techniques; mean filtering, median filtering, Fourier filtering. The different approaches are compared in terms of speckle reduction, edge preservation and resolution preservation.

Item Type:	Article
Keywords:	comparison; wavelet analysis techniques; digital holograms;
Academic Unit:	Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	15749
Identification Number:	https://doi.org/10.1117/12.782786
Depositing User:	Thomas Naughton
Date Deposited:	29 Mar 2022 14:50
Journal or Publication Title:	Proceedings of SPIE - The International Society for Optical Engineering 6994
Publisher:	SPIE Digital Library
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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