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    A Comparison of Wavelet Analysis Techniques in Digital Holograms


    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:

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