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Proceedings Paper

Array-projected aperiodic sinusoidal fringes for high-speed 3-D shape measurement
Author(s): Stefan Heist; Andreas Mann; Peter Kühmstedt; Peter Schreiber; Gunther Notni
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Paper Abstract

In recent years, the demands on three-dimensional (3-D) measurement systems have been getting higher, es- pecially concerning their speed. The use of a 3-D array projector enables measurement frame rates of up to the 100-kHz range. Our contribution introduces a new purpose-built setup that projects aperiodic sinusoidal fringes. We explain the 3-D measurement principle and the basic design of a 3-D array projector and describe the method how the desired aperiodic sinusoidal fringes are generated. We verify the consistency between specified and projected patterns and point out the results of the setups’s characterization, e.g., of its high-speed capability. Furthermore, first 3-D shape measurements at a projection frame rate of 3 kHz resulting in a 3-D frame rate of <330 Hz are presented and evaluated.

Paper Details

Date Published: 28 May 2014
PDF: 12 pages
Proc. SPIE 9110, Dimensional Optical Metrology and Inspection for Practical Applications III, 91100D (28 May 2014); doi: 10.1117/12.2050410
Show Author Affiliations
Stefan Heist, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Andreas Mann, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Kühmstedt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Schreiber, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Gunther Notni, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)


Published in SPIE Proceedings Vol. 9110:
Dimensional Optical Metrology and Inspection for Practical Applications III
Kevin G. Harding; Toru Yoshizawa, Editor(s)

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