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Geotechnical and Geological Engineering

, Volume 36, Issue 2, pp 1059–1069 | Cite as

A New Feature Based Algorithm for Image Analysis of Deformable Materials for Laboratory Investigations of Slope Stability

  • Marc ElmouttieEmail author
  • Andrew Olsson
  • Manoj Khanal
  • Karsten Hoehn
  • Deepak Adhikary
Original paper
  • 151 Downloads

Abstract

Physical modelling of slope stability scenarios can provide new insights into failure mechanisms as well as assistance with interpretation of numerical modelling investigations. To increase the value of such experiments, algorithms that support rapid analysis and quantification of the slope deformation occurring in the experiment are needed. Feature based image analysis has advantages in this respect over area or patch based approaches but suffers from robustness issues. To this end, a new image processing algorithm for measurement of deformation of granular media in laboratory experiments is presented. Our novel algorithm combines a feature detector with model based constraints and outlier detection to achieve fast and robust particle tracking. Comparison with a high precision particle image velocimetry algorithm shows excellent results with much improved processing times. Application of the algorithm for analysis of a laboratory simulation of slope stability is demonstrated and comparison with numerical modelling confirms the algorithm’s flexibility and robustness.

Keywords

Image analysis Slope stability Sand grain tracking Particle image velocimetry 

Notes

Acknowledgements

The work described in this paper was funded by a CSIRO Minerals strategic project R-6580-3-2. We thank Jon Allemand for his assistance with the laboratory work, and Greg Krahenbuhl, Binzhong Zhou and the anonymous reviewers for their improvement of the manuscript.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.CSIRO EnergyKenmoreAustralia
  2. 2.CSIRO MineralsKenmoreAustralia

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