Experiences in determination of non-rigid body motion in industrial environment using low-cost photogrammetry

Ewelina Rupnik; Josef Jansa

doi:10.1117/12.2021015

23 May 2013 Experiences in determination of non-rigid body motion in industrial environment using low-cost photogrammetry

Ewelina Rupnik, Josef Jansa

Author Affiliations +

Proceedings Volume 8791, Videometrics, Range Imaging, and Applications XII; and Automated Visual Inspection; 87910I (2013) https://doi.org/10.1117/12.2021015
Event: SPIE Optical Metrology 2013, 2013, Munich, Germany

Abstract

Central to our investigation is determination of dynamic behaviour of a highly reflective platform floating on water, as well as derivation of parameters defining instantaneous water state. The employed imaging setup consists of three off-the-shelf dSLR cameras capable of video recording at a 30Hz frame rate. In order to observe a change, the non-rigid and non-diffuse bodies impose the adoption of artificial targetting and custom measurement algorithms. Attention will be given to an in-house software tool implemented to carry out point measurement, correspondence search, tracking and outlier detection methods in the presence of specular reflections and a multimedia scene. A methodology for retrieval of wave parameters in regular wave conditions is also automatically handled by the software and will be discussed. In the context of performed measurements and achieved results, we will point out the extent to which consumer grade camera can fulfil automation and accuracy demands of industrial applications and the pitfalls entailed. Lastly, we will elaborate on visual representation of computed motion and deformations.

Citation Download Citation

Ewelina Rupnik and Josef Jansa "Experiences in determination of non-rigid body motion in industrial environment using low-cost photogrammetry", Proc. SPIE 8791, Videometrics, Range Imaging, and Applications XII; and Automated Visual Inspection, 87910I (23 May 2013); https://doi.org/10.1117/12.2021015

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