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Proceedings Article

Application of super image methods in digital holography

[+] Author Affiliations
Janos Kornis, Balazs Gombkoto

Budapest Univ. of Technology and Economics (Hungary)

Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, 245 (August 03, 2005); doi:10.1117/12.618632
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From Conference Volume 5856

  • Optical Measurement Systems for Industrial Inspection IV
  • Wolfgang Osten; Christophe Gorecki; Erik L. Novak
  • Munich, Germany | June 13, 2005

abstract

As in the classical holography, a major issue in digital holography is the enhancement of the resolution of the digital holograms. It means not only the enhancement of the image quality, but the extension of the upper measuring range too. One natural way can be the application of higher resolution recording devices. Unfortunately the price of a doubled resolution camera is approximately fourfold. In the presentation a different way of the resolution enhancement is shown. The resolution enhancement (building the super image) is based on the building of well sampled so called super images from a set of under sampled but dithered input images. Such methods are originated from the drizzle method, and from the Fourier spectrum combination method. Using these methods not only the resolution of the digital hologram can be increased, but the object distance also can be dramatically shortened.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Janos Kornis and Balazs Gombkoto
"Application of super image methods in digital holography", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, 245 (August 03, 2005); doi:10.1117/12.618632; http://dx.doi.org/10.1117/12.618632


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