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Proceedings Paper

Video moire topography for in-vitro studies of the eardrum
Author(s): Joris J.J. Dirckx; Willem F. Decraemer
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Paper Abstract

An opto-electronic projection moire apparatus was developed for in-vitro studies of the eardrum. Moire topograms are generated by real-time video image subtraction, yielding 25 new interferograms per second. By using different reference images, both shape and deformation fringes can be obtained, without manipulating the object or the setup. Calibration measurements show a measuring precision of 5 micrometers . The setup is used to measure the shape and deformation of the eardrum. Parameters such as, for instance, the volume displacement of the pars flaccida, can be calculated from computer evaluations of the topograms.

Paper Details

Date Published: 13 January 1998
PDF: 10 pages
Proc. SPIE 3196, Optical and Imaging Techniques for Biomonitoring III, (13 January 1998); doi: 10.1117/12.297928
Show Author Affiliations
Joris J.J. Dirckx, Univ. of Antwerp (Belgium)
Willem F. Decraemer, Univ. of Antwerp (Belgium)


Published in SPIE Proceedings Vol. 3196:
Optical and Imaging Techniques for Biomonitoring III
Hans-Jochen Foth; Renato Marchesini; Halina Podbielska; Abraham Katzir, Editor(s)

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