Fast 3D shape measurements using laser speckle projection

Martin Schaffer; Marcus Grosse; Bastian Harendt; Richard Kowarschik

doi:10.1117/12.889471

26 May 2011 Fast 3D shape measurements using laser speckle projection

Martin Schaffer, Marcus Grosse, Bastian Harendt, Richard Kowarschik

Proceedings Volume 8082, Optical Measurement Systems for Industrial Inspection VII; 808219 (2011) https://doi.org/10.1117/12.889471
Event: SPIE Optical Metrology, 2011, Munich, Germany

Abstract

3D measurement setups based on structured light projection are widely used for many industrial applications. Due to intense research in the past the accuracy is comparably high in connection with relatively low cost of the equipment. But facing higher acquisition rates in industries especially for chain assembling lines there are still hurdles to take when accelerating 3D measurements and at the same time retaining accuracies. We developed a projection technique that uses laser speckles to enable fast 3D measurements with statistically structured light patterns. In combination with a temporal correlation technique dense and accurate 3D reconstructions at nearly video rate can be achieved.

Citation Download Citation

Martin Schaffer, Marcus Grosse, Bastian Harendt, and Richard Kowarschik "Fast 3D shape measurements using laser speckle projection", Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 808219 (26 May 2011); https://doi.org/10.1117/12.889471

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