Decraemer, Willem

Dirckx, Joris

Abstract: An opto-electronic projection moire apparatus was developed for in-vitro studies of the eardrum. Moire topograms are generated by real-lime 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 mu m. 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

Video-moir\ue9 topography for in-vitro studies of the eardrum

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Institutional Repository Universiteit Antwerpen

Institutional Repository Universiteit Antwerpen