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Proceedings Paper

New dynamic endoscopic holographic interferometer for in-vivo medical imaging metrology
Author(s): Gert von Bally; Bjorn Kemper; Andre Merker; S. Lai
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Paper Abstract

A novel Electronic-Speckle-Pattern-Interferometer which is based on an endoscope camera system can be applied to handheld examinations for in-vivo minimal-invasive diagnostics. Optical fibers, endoscopic optics and an amplitude modulated cw-laser are 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. The influence of rigid body motions on the interference fringe pattern is compensated by a new digital processing method based on Fourier algorithms.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354801
Show Author Affiliations
Gert von Bally, Univ. of Muenster (Germany)
Bjorn Kemper, Univ. of Muenster (Germany)
Andre Merker, Univ. of Muenster (Germany)
S. Lai, Univ. of Muenster (China)


Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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