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Article
Application of Up-Sampling and Resolution Scaling to Fresnel Reconstruction of Digital Holograms
Applied Optics
  • Logan Williams, University of Dayton
  • George Nehmetallah, The Catholic University of America
  • Rola Aylo, The Catholic University of America
  • Partha P. Banerjee, University of Dayton
Document Type
Article
Publication Date
2-1-2015
Abstract
Fresnel transform implementation methods using numerical preprocessing techniques are investigated in this paper. First, it is shown that up-sampling dramatically reduces the minimum reconstruction distance requirements and allows maximal signal recovery by eliminating aliasing artifacts which typically occur at distances much less than the Rayleigh range of the object. Second, zero-padding is employed to arbitrarily scale numerical resolution for the purpose of resolution matching multiple holograms, where each hologram is recorded using dissimilar geometric or illumination parameters. Such preprocessing yields numerical resolution scaling at any distance. Both techniques are extensively illustrated using experimental results.
Inclusive pages
1443-1452
ISBN/ISSN
1559-128X
Comments

Permission documentation is on file.

Publisher
Optical Society of America
Peer Reviewed
Yes
Citation Information
Logan Williams, George Nehmetallah, Rola Aylo and Partha P. Banerjee. "Application of Up-Sampling and Resolution Scaling to Fresnel Reconstruction of Digital Holograms" Applied Optics Vol. 54 Iss. 6 (2015)
Available at: http://works.bepress.com/partha_banerjee/30/