Digital Surface Model

General info
1/25 000 to 1/250
Spatial resolution: 
10 to 0.1m
Required processing: 
Multi-view image matching and 3D reconstruction tools.
Data requirements: 

Multi-view visible images (satellite, aerial, UAV,…) together with precise information about sensor position, viewing conditions and camera specifications.

Detailed georeferenced data of the altitude of the surface (including terrain and off-terrain objects).

Why using remote sensors?: 

A detailed Digital Elevation Model can be used not only to look for special relief features but also for further processing (e.g. orthorectification) or a variety of different analysis (e.g. visibility, trafficability, detection of trenches, etc.).