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Proceedings Paper

Aperiodic sinusoidal fringes in comparison to phase-shifted sinusoidal fringes for high-speed three-dimensional shape measurement
Author(s): Stefan Heist; Peter Lutzke; Peter Kühmstedt; Gunther Notni
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Paper Abstract

In order to optically reconstruct the three-dimensional (3-D) surface shape of moving objects or deformation processes, aside from high-speed cameras, high-speed projectors and/or short projection sequences are necessary. One approach is to project a series of aperiodic sinusoidal fringes, e.g., by using an array projector that can achieve frame rates of several 10 kHz. So far, we have demonstrated the fundamental functionality of a 3-D sensor based on this projection technique. Now the measurement principle itself is to be compared with phase-shifting fringe projection as probably the most widely used technique. Theoretical considerations as well as experimental investigations are conducted to derive criteria for the design of optimal sequences of aperiodic sinusoidal fringes and to compare the number of patterns of both approaches necessary for comparable accuracies.

Paper Details

Date Published: 1 September 2015
PDF: 9 pages
Proc. SPIE 9576, Applied Advanced Optical Metrology Solutions, 957605 (1 September 2015); doi: 10.1117/12.2187849
Show Author Affiliations
Stefan Heist, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Lutzke, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Kühmstedt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Gunther Notni, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ilmenau Univ. of Technology (Germany)

Published in SPIE Proceedings Vol. 9576:
Applied Advanced Optical Metrology Solutions
Erik Novak; James D. Trolinger, Editor(s)

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