Influence of the measurement object's reflective properties on the accuracy of array projection-based 3D sensors

Stefan Heist; Peter Kühmstedt; Gunther Notni

doi:10.1117/12.2262513

1 May 2017 Influence of the measurement object's reflective properties on the accuracy of array projection-based 3D sensors

Stefan Heist, Peter Kühmstedt, Gunther Notni

Author Affiliations +

Proceedings Volume 10220, Dimensional Optical Metrology and Inspection for Practical Applications VI; 1022008 (2017) https://doi.org/10.1117/12.2262513
Event: SPIE Commercial + Scientific Sensing and Imaging, 2017, Anaheim, CA, United States

Abstract

In order to increase the measurement speed of pattern projection-based three-dimensional (3-D) sensors, in 2014, we introduced the so-called array projector which allows pattern projection at several 1,000 fps. As the patterns are switched by switching on and off the light sources of multiple slide projectors, each pattern originates from a different projection center. This may lead to a 3-D point deviation when measuring glossy objects. In this contribution, we theoretically and experimentally investigate the dependence of this deviation on the measurement object's reflective properties. Furthermore, we propose a procedure for compensating for this deviation.

Citation Download Citation

Stefan Heist, Peter Kühmstedt, and Gunther Notni "Influence of the measurement object's reflective properties on the accuracy of array projection-based 3D sensors", Proc. SPIE 10220, Dimensional Optical Metrology and Inspection for Practical Applications VI, 1022008 (1 May 2017); https://doi.org/10.1117/12.2262513

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