‘Structure-from-Motion’ photogrammetry: A low-cost, effective tool for geoscience applications
Highlights
► Structure-from-Motion represents an effective, low-cost topographic surveying tool. ► It requires little more than a consumer-grade digital camera and ground control. ► We benchmark the technique against data obtained from terrestrial laser scanning. ► 85.6% of the SfM data are accurate to within ± 0.5 m of the TLS data. ► Example applications are presented from Snowdonia, UK, and the Khumbu Himal, Nepal.
Keywords
Structure-from-Motion (SfM)
Close‐range photogrammetry
Digital elevation model (DEM)
SFMToolkit
Terrestrial laser scanning (TLS)
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