Experimental comparison of phase-shifting fringe projection and statistical pattern projection for active triangulation systems

Peter Lutzke; Martin Schaffer; Peter Kühmstedt; Richard Kowarschik; Gunther Notni

doi:10.1117/12.2020910

13 May 2013 Experimental comparison of phase-shifting fringe projection and statistical pattern projection for active triangulation systems

Peter Lutzke, Martin Schaffer, Peter Kühmstedt, Richard Kowarschik, Gunther Notni

Author Affiliations +

Proceedings Volume 8788, Optical Measurement Systems for Industrial Inspection VIII; 878813 (2013) https://doi.org/10.1117/12.2020910
Event: SPIE Optical Metrology 2013, 2013, Munich, Germany

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.

Citation Download Citation

Peter Lutzke, Martin Schaffer, Peter Kühmstedt, Richard Kowarschik, and Gunther Notni "Experimental comparison of phase-shifting fringe projection and statistical pattern projection for active triangulation systems", Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 878813 (13 May 2013); https://doi.org/10.1117/12.2020910

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