Ryan Kromer
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Influence of System-Scale Change on Co-Alignment Comparative Accuracy in Fixed Terrestrial Photogrammetric Monitoring Systems Open
Photogrammetry can be a valuable tool for understanding landscape evolution and natural hazards such as landslides. However, factors such as vegetation cover, shadows, and unstable ground can limit its effectiveness. Using photos across ti…
High-Temporal-Resolution Rock Slope Monitoring Using Terrestrial Structure-from-Motion Photogrammetry in an Application with Spatial Resolution Limitations Open
Research on high-temporal-resolution rock slope monitoring has tended to focus on scenarios where spatial resolution is also high. Accordingly, there is a lack of understanding of the implications for rock slope monitoring results in cases…
A NOVEL APPROACH TO REGISTER MULTI-PLATFORM POINT CLOUDS FOR ROCKFALL MONITORING Open
Point cloud produced from technologies such as terrestrial laser scanning (TLS) and photogrammetry (terrestrial and aerial) are widely used in rockfall monitoring applications due to the wealth of data they provide. In such applications, t…
Development of Improved Semi-Automated Processing Algorithms for the Creation of Rockfall Databases Open
While terrestrial laser scanning and photogrammetry provide high quality point cloud data that can be used for rock slope monitoring, their increased use has overwhelmed current data analysis methodologies. Accordingly, point cloud process…
View article: Development and Optimization of an Automated Fixed-Location Time Lapse Photogrammetric Rock Slope Monitoring System
Development and Optimization of an Automated Fixed-Location Time Lapse Photogrammetric Rock Slope Monitoring System Open
An automated, fixed-location, time lapse camera system was developed as an alternative to monitoring geological processes with lidar or ground-based interferometric synthetic-aperture radar (GB-InSAR). The camera system was designed to det…
Identifying and Monitoring Rockfall Precursors Using Terrestrial Laser Scanning for Improved Rockfall Hazard Management Open
Rockfalls threaten communities and infrastructure in mountainous regions worldwide and have been a particularly problematic hazard along the transportation corridors in western Canada. These types of failures are traditionally managed usin…
Automated terrestrial laser scanning with near-real-time change detection – monitoring of the Séchilienne landslide Open
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…
Managing rockfall risk through baseline monitoring of precursors using a terrestrial laser scanner Open
Rockfalls represent significant risks to safe and efficient use of transportation corridors. In this paper, we address the management of rockfall risk through baseline remote monitoring of susceptible slopes (every 2–4 months) along a tran…
Automated Terrestrial Laser Scanning with Near Real-Time Change Detection – Monitoring of the Séchilienne Landslide Open
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 six-week period with data collected at 30 m…