A paper authored by COFS’ Sam Stanier and Dave White in collaboration with Justin Blaber (Georgia Tech., USA) and Andy Take (Queen’s University, Canada), has been announced as an ‘Editor’s Choice’ for 2016 by Canadian Geotechnical Journal. The paper (Stanier et al. 2015) describes and benchmarks a new image-based deformation measurement tool embodied in the popular freeware program GeoPIV,
This work extends Dave and Andy’s 2003 Géotechnique paper (White et al. 2003), co-authored with Prof. Malcolm Bolton of Cambridge University, UK. Since publication, the original paper has become the 7th most-cited paper of all-time and the most-cited paper since 1993 to appear in the pages of Géotechnique with >600 citations. In recognition of the potential impact of the latest paper describing GeoPIV’s reincarnation, the editorial team at Canadian Geotechnical Journal has granted permanent free access to the article for all Internet users.
The updated algorithms have been embodied in software called GeoPIV-RG in homage to the ‘reliability guided’ approach used to determine the order in which the subsets or patches are processed. The program also incorporates a first-order subset shape function allowing the subsets to distort and rotate resulting in an improvement of measurement precision of at least an order of magnitude. The updated software was released on the web in late 2015 alongside ‘how-to’ videos and example data to guide new users in its application (see www.geopivrg.com). It is already in use by >250 individual researchers at >140 institutions on every continent of the planet except Antarctica!
Stanier, S.A., Blaber, J., Take, W., and White, D. (2015). Improved image-based deformation measurement for geotechnical applications. Canadian Geotechnical Journal, doi: 10.1139/cgj-2015-0253.
White D, Take W, Bolton M. (2003). Soil deformation measurement using particle image velocimetry (PIV) and photogrammetry. Géotechnique, 53(7): 619–31.
Image: based deformation measurements of the shear zone created during bulldozing
Sam Stanier, Centre for Offshore Foundation Systems, +61 8 6488 3469
David White, Centre for Offshore Foundation Systems, +61 8 6488 3086