Fringe-shifting single-projector moiré topography application for cotyle implantate abrasion measurement

Tomáš Rössler; Miroslav Hrabovský; František Pluháček

doi:10.1117/12.638931

6 December 2006 Fringe-shifting single-projector moire topography application for cotyle implantate abrasion measurement

Tomáš Rössler, Miroslav Hrabovský, František Pluháček

Author Affiliations +

Proceedings Volume 5945, 14th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 594511 (2006) https://doi.org/10.1117/12.638931
Event: 14th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2005, Nitra, Slovakia

Abstract

The cotyle implantate is abraded in the body of patient and its shape changes. Information about the magnitude of abrasion is contained in the result contour map of the implantate. The locations and dimensions of abraded areas can be computed from the contours deformation. The method called the single-projector moire topography was used for the contour lines determination. The theoretical description of method is given at first. The design of the experimental set-up follows. The light grating projector was developed to realize the periodic structure on the measured surface. The method of fringe-shifting was carried out to increase the data quantity. The description of digital processing applied to the moire grating images is introduced at the end together with the examples of processed images.

Citation Download Citation

Tomáš Rössler, Miroslav Hrabovský, and František Pluháček "Fringe-shifting single-projector moire topography application for cotyle implantate abrasion measurement", Proc. SPIE 5945, 14th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 594511 (6 December 2006); https://doi.org/10.1117/12.638931

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