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Optical Engineering

Outdoor three-dimensional shape measurements using laser-based structured illumination
Author(s): Martin Schaffer; Marcus Grosse; Bastian Harendt; Richard Kowarschik
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Paper Abstract

Three-dimensional shape measurements using structured illumination can achieve accurate shape representation of arbitrary object scenes. High-speed approaches have been recently developed and are already on the way into industry. Structured illumination for outdoor applications is rarely used as it is difficult to achieve a high-pattern contrast under bright light conditions. Hence, laser scanning or photogrammetry without active illumination is usually preferred; often, measurements are carried out at night. A shape measurement approach is suggested, one that is suitable to quickly and accurately acquire object shapes, even under difficult light circumstances. This approach is based on laser speckle projection and spectral filtering. The results made with this setup are presented, along with media that underlines its capabilities.

Paper Details

Date Published: 14 September 2012
PDF: 3 pages
Opt. Eng. 51(9) 090503 doi: 10.1117/1.OE.51.9.090503
Published in: Optical Engineering Volume 51, Issue 9
Show Author Affiliations
Martin Schaffer, Friedrich-Schiller-Univ. Jena (Germany)
Marcus Grosse, Friedrich-Schiller-Univ. Jena (Germany)
Bastian Harendt, Friedrich-Schiller-Univ. Jena (Germany)
Richard Kowarschik, Friedrich-Schiller-Univ. Jena (Germany)

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