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GOBO projection-based high-speed three-dimensional shape measurement

: Heist, S.; Lutzke, P.; Schmidt, I.; Dietrich, P.; Kühmstedt, P.; Notni, G.


Harding, K.G. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Dimensional optical metrology and inspection for practical applications V : 20 April 2016, Baltimore, Maryland, United States
Bellingham, WA: SPIE, 2016 (Proceedings of SPIE 9868)
ISBN: 978-1-5106-0109-3
Paper 98680F
Conference "Dimensional Optical Metrology and Inspection for Practical Applications" <5, 2016, Baltimore/Md.>
Fraunhofer IOF ()

Pattern projection-based three-dimensional (3-D) measurement systems are well established in various application fields. However, for some time, there has been an increasing demand in terms of a higher measurement speed in order to analyze fast processes. We introduce a GOBO slide-based projector (GOes Before Optics) providing high speed, high radiant flux, and eye-safe incoherent light at low cost. We present its setup as well as the generation and change of the projected patterns. We explain the 3-D measurement principle and show first measurements of an inflating airbag and a rope skipper conducted at a 3-D frame rate of more than 1.3 kHz.