Flexible autocalibrating full-body 3D measurement system using digital light projection

Gunther Notni; Wolfgang Schreiber; Matthias Heinze; Georg H. Notni

doi:10.1117/12.364241

21 September 1999 Flexible autocalibrating full-body 3D measurement system using digital light projection

Gunther Notni, Wolfgang Schreiber, Matthias Heinze, Georg H. Notni

Proceedings Volume 3824, Optical Measurement Systems for Industrial Inspection; (1999) https://doi.org/10.1117/12.364241
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

A self-calibrating 3D measurement system using structured- light illumination with a digital-light projection unit (DMD) will be reported, which ensures a high number of object points, quick data acquisition, and a simultaneous determination of coordinates and system parameters (self calibration), making the system completely insensitive to environmental changes. Furthermore, there is no necessity of any marker on the object surface and a subsequent matching of the single views is not required to obtain a full-body measurement. For this reason, the object under test is successively illuminated with two grating sequences perpendicular to each other from different directions resulting in surplus phase values for each measurement point. On the basis of this phase value one can calculate the orientation parameters as well as the 3D-coordinates online. Two different measurement set-ups will be reported, which have the ability to measure the entire surface (full-body measurement).

Citation Download Citation

Gunther Notni, Wolfgang Schreiber, Matthias Heinze, and Georg H. Notni "Flexible autocalibrating full-body 3D measurement system using digital light projection", Proc. SPIE 3824, Optical Measurement Systems for Industrial Inspection, (21 September 1999); https://doi.org/10.1117/12.364241

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