Suitability of structure from motion for rock‐slope assessment

This study examines three sites in Alaska with unstable rock slopes that were surveyed using both terrestrial laser scanning ( TLS ) and structure‐from‐motion (SfM) techniques. The datasets were acquired simultaneously and linked to a rigorous survey control network. An accuracy evaluation of the SfM‐derived surface models was performed using the TLS data and numerous reflectorless total station observations collected across the rock slopes. A...