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Proceedings Paper

Fringe projection based high-speed 3D sensor for real-time measurements
Author(s): Christian Bräuer-Burchardt; Andreas Breitbarth; Peter Kühmstedt; Ingo Schmidt; Matthias Heinze; Gunther Notni
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Paper Abstract

A sensor based on fringe projection technique was developed which allows ultrafast measurements of the surface of flat measuring objects which realizes a data acquisition rate up to 8.9 million 3D points per second. The high measuring velocity was achieved by consequent fringe code reduction and parallel data processing. Fringe sequence length was reduced using geometric constraints of the sensor arrangement including epipolar geometry. Further reduction of the image sequence length was obtained by omission of the Gray code sequence by using the geometric constraints of the measuring objects. The sensor may be used e.g. for inspection of conductor boards.

Paper Details

Date Published: 26 May 2011
PDF: 8 pages
Proc. SPIE 8082, Optical Measurement Systems for Industrial Inspection VII, 808212 (26 May 2011); doi: 10.1117/12.889459
Show Author Affiliations
Christian Bräuer-Burchardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Andreas Breitbarth, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Peter Kühmstedt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ingo Schmidt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Matthias Heinze, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Gunther Notni, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)


Published in SPIE Proceedings Vol. 8082:
Optical Measurement Systems for Industrial Inspection VII
Peter H. Lehmann; Wolfgang Osten; Kay Gastinger, Editor(s)

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