New dynamic endoscopic holographic interferometer for in-vivo medical imaging metrology

Gert von Bally; Bjorn Kemper; Andre Merker; S. Lai

doi:10.1117/12.354801

19 July 1999 New dynamic endoscopic holographic interferometer for in-vivo medical imaging metrology

Gert von Bally, Bjorn Kemper, Andre Merker, S. Lai

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.354801
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

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.

Citation Download Citation

Gert von Bally, Bjorn Kemper, Andre Merker, and S. Lai "New dynamic endoscopic holographic interferometer for in-vivo medical imaging metrology", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.354801

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