Structure from motion (SfM) photogrammetry....of people!
A short course last August at the Indiana University Judson Mead Geologic Field Station in Montana brought together 21 geoscience field instructors to learn about incorporating terrestrial laser scanning (TLS; sometimes called ground-based lidar) and structure from motion (SfM) photogrammetry into geoscience courses with field components. Both methods can be used to generate high-resolution, three-dimensional topographic models that can be applied to hazard assessment, geomorphic change detection, and stratigraphic sequence analysis, to cite a few examples.
In this scene, meeting attendees held still for one minutes as 18 photos were taken from various points of view using a smartphone. These images were then compiled using structure from motion software to create a topographic point cloud that resolves features down to ~5 mm.
Credit: Benjamin Crosby
Read more at https://eos.org/meeting-reports/integ...
