Location and interpretation of infantry and artillery fortifications

General info
1/1 500 to 1/250
Spatial resolution: 
0.5 to 0.05m
Required processing: 
Orthorectification and mosaicking of the aerial photographs. Computer-Assisted Photo Interpretation (CAPI).
Data requirements: 

Aerial photographs

Georeferenced polygons circling the fortifications or lines delineating them.

Why using remote sensors?: 

Fortifications can be detected visually, or in certain cases semi-automatically, on aerial photographs. A preliminary analysis of the conflict landscape helps focus on locations where these objects are more likely to be found.