Instrumentation, Techniques, and Measurement

Experimental comparison of aperiodic sinusoidal fringes and phase-shifted sinusoidal fringes for high-speed three-dimensional shape measurement

[+] Author Affiliations
Stefan Heist, Andreas Tünnermann

Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Straße 7, Jena 07745, Germany

Friedrich Schiller University Jena, Institute of Applied Physics, Abbe Center of Photonics, Albert-Einstein-Straße 15, Jena 07745, Germany

Peter Kühmstedt

Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Straße 7, Jena 07745, Germany

Gunther Notni

Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Straße 7, Jena 07745, Germany

Ilmenau University of Technology, Gustav-Kirchhoff-Platz 2, Ilmenau 98693, Germany

Opt. Eng. 55(2), 024105 (Feb 26, 2016). doi:10.1117/1.OE.55.2.024105
History: Received October 6, 2015; Accepted February 3, 2016
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Abstract.  Stereo vision-based triangulation systems are commonly used to reconstruct the three-dimensional surface shape of objects. In order to increase accuracy, they typically contain a projector which projects a sequence of patterns onto the object’s surface. However, in spite of a considerable demand to measure dynamic processes, such systems are often limited to static objects. In order to enhance their speed, apart from fast cameras and projection systems, it is useful to use pattern sequences as short as possible. In this contribution, we experimentally compare two different illumination approaches, aperiodic sinusoidal fringes and phase-shifted sinusoidal fringes, with regard to the achievable point cloud completeness and accuracy depending on the pattern parameters and sequence length.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Stefan Heist ; Peter Kühmstedt ; Andreas Tünnermann and Gunther Notni
"Experimental comparison of aperiodic sinusoidal fringes and phase-shifted sinusoidal fringes for high-speed three-dimensional shape measurement", Opt. Eng. 55(2), 024105 (Feb 26, 2016). ; http://dx.doi.org/10.1117/1.OE.55.2.024105


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