An automated change detection pipeline registers the point clouds with scale adjustment and filters vegetation. Structure from motion (SfM) photogrammetry workflows were optimized to be used without ground control. The camera system consists of five digital single-lens reflex (DSLR) cameras which collect photographs of the rock slope daily and automatically upload them to a server for processing. It was implemented at a site along interstate I70 near Idaho Springs, Colorado. The camera system was designed to detect fragmental rockfalls and pre-failure deformation at rock slopes. 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).
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