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Application of Rainbow Holography for Speckle Reduction in Tympanic Membrane Interferometry

  • C. Martin
  • C. Sieger
Conference paper
  • 206 Downloads
Part of the Springer Series in Optical Sciences book series (SSOS, volume 31)

Abstract

When examining tympanic membrane oscillations with methods of holographic interferometry the well known phenomenon of speckle patterns is encountered, as is the case in most fields of coherent optics [1]. Although the average size of speckles is about the size of the Airy discs [2], the image quality is affected by speckle granulation [3]. Principally the problem generated by speckles may be removed by choosing large apertures. But there are situations where a small aperture is unavoidable. Such limited apertures exist, e.g. in endoscopic holography. In such situations an improvement of image quality can only be achieved by the application of speckle reduction procedures during hologram reconstruction.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1982

Authors and Affiliations

  • C. Martin
    • 1
  • C. Sieger
    • 1
  1. 1.Institut für medizinische OptikUniversität MünchenMünchen 2Fed. Rep. of Germany

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