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Comparison of calibration strategies for optical 3D scanners based on structured light projection using a new evaluation methodology

: Bräuer-Burchardt, C.; Ölsner, S.; Kühmstedt, P.; Notni, G.


Remondino, F. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Videometrics, Range Imaging, and Applications XIV : 26-27 June 2017, Munich, Germany
Bellingham, WA: SPIE, 2017 (Proceedings of SPIE 10332)
ISBN: 978-1-5106-1109-2
ISBN: 978-1-5106-1110-8
Article 103320F, 10 S.
Conference "Videometrics, Range Imaging, and Applications" <16, 2017, Munich>
Fraunhofer IOF ()

In this paper a new evaluation strategy for optical 3D scanners based on structured light projection is introduced. It can be used for the characterization of the expected measurement accuracy. Compared to the procedure proposed in the VDI/VDE guidelines for optical 3D measurement systems based on area scanning it requires less effort and provides more impartiality. The methodology is suitable for the evaluation of sets of calibration parameters, which mainly determine the quality of the measurement result. It was applied to several calibrations of a mobile stereo camera based optical 3D scanner. The performed calibrations followed different strategies regarding calibration bodies and arrangement of the observed scene. The results obtained by the different calibration strategies are discussed and suggestions concerning future work on this area are given.