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A Novel Electronic-Speckle-Pattern Interferometer (ESPI) for Dynamic Holographic Endoscopy

  • Conference paper
Optics and Lasers in Biomedicine and Culture

Part of the book series: Series of the International Society on Optics Within Life Sciences ((3718,volume 5))

Abstract

A novel Electronic-Speckle-Pattern Interferometer based on an endoscope camera system is presented which can be applied to hand-held examinations of technical objects and for in-vivo minimal invasive medical diagnostics. Optical fibers and endoscopic optics permit a very compact and flexible setup of this ESPI system. An amplitude modulated cw-laser is used for illumination. A CCD-camera in combination with a fast frame-grabber system allows dynamic “on line”-image subtractions up to a frequency of 25 Hz with high fringe contrast. First results of measurements with this system from investigations of technical objects and biological objects (in-vivo) are obtained. With this method, the operator’s tactile contact with the treated tissue which is lost in endoscopic minimal invasive therapy can be replaced by visual information (endoscopic taction).

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References

  1. Coquoz, C. et al.: Holography with a flexible microendoscope, Series on Optics Within Life Sciences, Elsevier, Amsterdam, Vol. 3 (1994) 235–238.

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  2. von Bally, G. et al.: Techniques for endoscopic holography, Series on Optics Within Life Sciences, Elsevier, Amsterdam, Vol. 1 (1993) 13–21.

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Author information

Author notes

  1. S. Lai

    Present address: Zhengzhou University of Technology, P. R. China

Authors and Affiliations

  1. Laboratory of Biophysics, University of Münster, Robert-Koch-Straße 45, D-48129, Münster, Germany

    B. Kemper, A. Merker & G. von Bally

Authors
  1. B. Kemper
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  2. A. Merker
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  3. S. Lai
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  4. G. von Bally
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Editor information

Editors and Affiliations

  1. FORTH-IESL, PO Box 1527, GR 71110, Heraklion, Greece

    Costas Fotakis , Theodore G. Papazoglou  & Costas Kalpouzos ,  & 

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© 2000 Springer-Verlag Berlin Heidelberg

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Kemper, B., Merker, A., Lai, S., von Bally, G. (2000). A Novel Electronic-Speckle-Pattern Interferometer (ESPI) for Dynamic Holographic Endoscopy. In: Fotakis, C., Papazoglou, T.G., Kalpouzos, C. (eds) Optics and Lasers in Biomedicine and Culture. Series of the International Society on Optics Within Life Sciences, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56965-4_4

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  • DOI: https://doi.org/10.1007/978-3-642-56965-4_4

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-63073-6

  • Online ISBN: 978-3-642-56965-4

  • eBook Packages: Springer Book Archive

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