Estimating the Rut Depth by UAV Photogrammetry

Estimating the Rut Depth by UAV Photogrammetry

The rut formation during forest operations is an undesirable phenomenon. A methodology is being proposed to measure the rut depth distribution of a logging site by photogrammetric point clouds produced by unmanned aerial vehicles (UAV). The methodology includes five processing steps that aim at reducing the noise from the surrounding trees and undergrowth for identifying the trails. A canopy he...

Uav Photogrammetry: Block Triangulation Comparisons

UAVs systems represent a flexible technology able to collect a big amount of high resolution information, both for metric and interpretation uses. In the frame of experimental tests carried out at Dept. ICA of Politecnico di Milano to validate vector-sensor systems and to assess metric accuracies of images acquired by UAVs, a block of photos taken by a fixed wing system is triangulated with sev...

Tropical Peatland Burn Depth and Combustion Heterogeneity Assessed Using UAV Photogrammetry and Airborne LiDAR

Kinematic analysis of sea cliff stability using UAV photogrammetry

13 Erosion and slope instability poses a significant hazard to communities and 14 infrastructure located is coastal areas. We use point cloud and spectral data derived from close 15 range digital photogrammetry to perform a kinematic analysis of chalk sea cliffs located at 16 Telscombe, UK. Our data were captured from an unmanned aerial vehicle (UAV) and cover a 17 cliff face that is about 750 ...

Performance Evaluation of 3d Modeling Software for Uav Photogrammetry

UAV (Unmanned Aerial Vehicle) photogrammetry, which combines UAV and freely available internet-based 3D modeling software, is widely used as a low-cost and user-friendly photogrammetry technique in the fields such as remote sensing and geosciences. In UAV photogrammetry, only the platform used in conventional aerial photogrammetry is changed. Consequently, 3D modeling software contributes signi...