High-speed 3D shape measurement by GOBO projection of aperiodic sinusoidal fringes: a performance analysis

Stefan Heist; Patrick Dietrich; Martin Landmann; Peter Kühmstedt; Gunther Notni

doi:10.1117/12.2304760

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14 May 2018 High-speed 3D shape measurement by GOBO projection of aperiodic sinusoidal fringes: a performance analysis

Stefan Heist, Patrick Dietrich, Martin Landmann, Peter Kühmstedt, Gunther Notni

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Proceedings Volume 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII; 106670A (2018) https://doi.org/10.1117/12.2304760
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, Florida, United States

Abstract

In order to increase the measurement speed of pattern projection-based 3D sensors, we have developed a GOBO slide-based pattern projector (GOes Before Optics) which allows for pattern projection at several 10,000 fps. After first experimental configurations have been mainly set up based on empirical study, in this contribution, we investigate the capabilities of a GOBO projection-based 3D sensor on a theoretical level. We discuss and optimize the parameters which influence the completeness and accuracy of the 3D result, and we experimentally verify the theoretical results by means of a GOBO projection-based 3D sensor operating in the near infrared.

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Stefan Heist, Patrick Dietrich, Martin Landmann, Peter Kühmstedt, and Gunther Notni "High-speed 3D shape measurement by GOBO projection of aperiodic sinusoidal fringes: a performance analysis", Proc. SPIE 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII, 106670A (14 May 2018); https://doi.org/10.1117/12.2304760

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