Articles | Volume 17, issue 7
Brief communication
18 Jul 2017
Brief communication |  | 18 Jul 2017

Brief communication: 3-D reconstruction of a collapsed rock pillar from Web-retrieved images and terrestrial lidar data – the 2005 event of the west face of the Drus (Mont Blanc massif)

Antoine Guerin, Antonio Abellán, Battista Matasci, Michel Jaboyedoff, Marc-Henri Derron, and Ludovic Ravanel

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Revised manuscript not accepted

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Cited articles

Abellán, A., Derron, M. H., and Jaboyedoff, M.: Editorial: “Use of 3-D Point Clouds in Geohazards” Special Issue: Current Challenges and Future Trends, Remote Sens., 8, 130,, 2016.
AgiSoft, L. L. C.: Agisoft PhotoScan Professional Edition (version 1.0.3), available at:, 2014.
Bakker, M., and Lane, S. N.: Archival photogrammetric analysis of river–floodplain systems using Structure from Motion (SfM) methods, Earth Surf. Proc. Land., 42, 1274–1286,, 2016.
Besl, P. J. and McKay, N. D.: Method for registration of 3-D shapes, in: Robotics-DL tentative, Int. Soc. Opt. Photon., 586–606, 1992.
Bussy, F., Schaltegger, U., and Marro, C.: The age of the Mont-Blanc granite (Western Alps): a heterogeneous isotopic systeme dated by Rb-Sr whole rock determinations on its microgranular enclaves, Schweiz. Miner. Petrog., 69, 3–13, 1989.
Short summary
The coupling of terrestrial lidar scans acquired in 2011 and a photogrammetric model created from 30 old Web-retrieved images enabled reconstructing in 3-D the Drus west face before the 2005 rock avalanche and estimating the volume of this event. The volume is calculated as 292 680 m3 (±5.6 %). However, despite functioning well for the Drus (legendary peak), this method would have been difficult to implement on a less-well-known site with fewer images available to be collected and downloaded.
Final-revised paper