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2015

Hutchinson, D. Jean, Kromer, Ryan A., Edwards, Tom, Lato, Matt, Jaboyedoff, Michel, Abellán, Antonio

This study presents a point cloud de-noising and calibration approach that takes advantage of point redundancy in both space and time (4D). The purpose is to detect displacements using terrestrial laser scanner data at the sub-mm scale or smaller, similar to radar systems, for the study of very...

2015-01-01

Kromer, Ryan A., Abellán, Antonio, Hutchinson, D. Jean, Lato, Matt, Edwards, Tom, Jaboyedoff, Michel

This study presents a point cloud de-noising and calibration approach that takes advantage of point redundancy in both space and time (4D). The purpose is to detect displacements using terrestrial laser scanner data at the sub-mm scale or smaller, similar to radar systems, for the study of very...

2017-01-01

Kromer, Ryan A., Abellán, Antonio, Hutchinson, D. Jean, Lato, Matt, Chanu, Marie-Aurelie, Dubois, Laurent, Jaboyedoff, Michel

We present an automated terrestrial laser scanning (ATLS) system with automatic near-real-time change detection processing. The ATLS system was tested on the Séchilienne landslide in France for a 6-week period with data collected at 30 min intervals. The purpose of developing the system was to...

2018-01-01

van Veen, Megan, Hutchinson, D. Jean, Bonneau, David A., Sala, Zac, Ondercin, Matthew, Lato, Matt

Remote sensing techniques can be used to gain a more detailed understanding of hazardous rock slopes along railway corridors that would otherwise be inaccessible. Multiple datasets can be used to identify changes over time, creating an inventory of events to produce magnitude–frequency...

2021-01-01

DiFrancesco, Paul-Mark, Bonneau, David A., Hutchinson, D. Jean

Key to the quantification of rockfall hazard is an understanding of its magnitude-frequency behaviour. Remote sensing has allowed for the accurate observation of rockfall activity, with methods being developed for digitally assembling the monitored occurrences into a rockfall database. A...

2019-01-01

Sala, Zac, Hutchinson, D. Jean, Harrap, Rob

Rockfall presents an ongoing challenge to the safe operation of transportation infrastructure, creating hazardous conditions which can result in damage to roads and railways, as well as loss of life. Rockfall risk assessment frameworks often involve the determination of rockfall runout in an...

2019-01-01

Bonneau, David, DiFrancesco, Paul-Mark, Hutchinson, D. Jean

Laser scanning is routinely being used for the characterization and management of rockfall hazards. A key component of many studies is the ability to use the high-resolution topographic datasets for detailed volume estimates. 2.5-Dimensional (2.5D) approaches exist to estimate the volume of...

2021-01-01

Farmakis, Ioannis, Bonneau, David, Hutchinson, D. Jean, Vlachopoulos, Nicholas

Reality capture technologies, also known as close-range sensing, have been increasingly popular within the field of engineering geology and particularly rock slope management. Such technologies provide accurate and high-resolution n-dimensional spatial representations of our physical world, known...

2020-01-01

DiFrancesco, Paul-Mark, Bonneau, David, Hutchinson, D. Jean

Rockfall inventories are essential to quantify a rockfall activity and characterize the hazard. Terrestrial laser scanning and advancements in processing algorithms have resulted in three-dimensional (3D) semi-automatic extraction of rockfall events, permitting detailed observations of evolving...

2019-01-01

Bonneau, David A., Hutchinson, D. Jean, DiFrancesco, Paul-Mark, Coombs, Melanie, Sala, Zac

Rockfall is a complex natural process that can present risks to the effective operation of infrastructure in mountainous terrain. Remote sensing tools and techniques are rapidly becoming the state of the practice in the characterization, monitoring and management of these geohazards. The aim of...