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Proceedings Paper

Depth-scanning fringe projection technique (DSFP) with 3D calibration
Author(s): Jean-Marc Nivet; Klaus Koerner; Ulrich Droste; Matthias Fleischer; Hans J. Tiziani; Wolfgang Osten
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Paper Abstract

We report on the depth-scanning fringe projection technique (DSFP) which is an innovative triangulation method for absolute 3-D profiling of macroscopic scenes. This measurement principle combines the confocal principle with the fringe projection and phase evaluation techniques known from white light interferometry. Scanning of the focal plane and additional lateral shifting allow the phase to be determined for any desired depth range of the measurement volume. Hence, the limitations of the depth of sharpness occurring with projected light techniques can be overcome. A 3-D calibration method has been implemented in order to deal with the problem of geometrical aberrations and to provide a 3-D point cloud. The well-known direct calibration method has been adapted to our DSFP setup. It has been completed to a set of three polynomial transformations which allow to include the depth-scanning principle in the calibration of the system.

Paper Details

Date Published: 30 May 2003
PDF: 8 pages
Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); doi: 10.1117/12.500071
Show Author Affiliations
Jean-Marc Nivet, Univ. Stuttgart (Germany)
Klaus Koerner, Univ. Stuttgart (Germany)
Ulrich Droste, Univ. Stuttgart (Germany)
Matthias Fleischer, Univ. Stuttgart (Germany)
Hans J. Tiziani, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)


Published in SPIE Proceedings Vol. 5144:
Optical Measurement Systems for Industrial Inspection III
Wolfgang Osten; Malgorzata Kujawinska; Katherine Creath, Editor(s)

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