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Proceedings Paper

Experimental comparison of phase-shifting fringe projection and statistical pattern projection for active triangulation systems
Author(s): Peter Lutzke; Martin Schaffer; Peter Kühmstedt; Richard Kowarschik; Gunther Notni
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Paper Abstract

Active triangulation systems are widely used for precise and fast measurements. Many different coding strategies have been invented to solve the correspondence problem. The quality of the measurement results depends on the accuracy of the pixel assignments. The most established method uses phase shifted-patterns projected on the scene. This is compared to a method using statistical patterns. In both coding strategies, the number and the spatial frequency of the projected patterns is varied. The measurements and calculations for all presented results were done with exactly the same measurement setup in a narrow time window to avoid any changes and to guarantee identical technical preconditions as well as comparability.

Paper Details

Date Published: 13 May 2013
PDF: 7 pages
Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 878813 (13 May 2013); doi: 10.1117/12.2020910
Show Author Affiliations
Peter Lutzke, Fraunhofer IOF (Germany)
Martin Schaffer, Friedrich Schiller Univ. (Germany)
Peter Kühmstedt, Fraunhofer IOF (Germany)
Richard Kowarschik, Friedrich Schiller Univ. (Germany)
Gunther Notni, Fraunhofer IOF (Germany)

Published in SPIE Proceedings Vol. 8788:
Optical Measurement Systems for Industrial Inspection VIII
Peter H. Lehmann; Wolfgang Osten; Armando Albertazzi, Editor(s)

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