Video moire topography for in-vitro studies of the eardrum

Joris J.J. Dirckx; Willem F. Decraemer

doi:10.1117/12.297928

13 January 1998 Video moire topography for in-vitro studies of the eardrum

Joris J.J. Dirckx, Willem F. Decraemer

Proceedings Volume 3196, Optical and Imaging Techniques for Biomonitoring III; (1998) https://doi.org/10.1117/12.297928
Event: BiOS Europe '97, 1997, San Remo, Italy

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.

Citation Download Citation

Joris J.J. Dirckx and Willem F. Decraemer "Video moire topography for in-vitro studies of the eardrum", Proc. SPIE 3196, Optical and Imaging Techniques for Biomonitoring III, (13 January 1998); https://doi.org/10.1117/12.297928

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