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Summary table
Summary table of the main operating optical remote sensing systems from 30 meters to sub meter resolution (not exhaustive)
Scale |
1/100 000 to 1/25 000 | 1/25 000 to 1/1 500 | 1/1 500 to 1/250 | Unknown | Points of interest |
Spatial resolution | 30 to 10m | 10 to 0.5m | 0.5 to 0.05m | ||
Platforms | Satellites | Satellites | Airplanes and helicopters | Fixed-wing RPAS | Multi-rotor RPAS |
Available since | 1980 | 2000 | 1950 | 2000 | 2000 |
Price/km² (*) | Free to 0.75 EUR/km² | 0,95 EUR/km² to 50 USD/km² | 10 to 100 EUR/km² | ||
Exemple of optical multispectral sensor |
|
Aerial photos in true or false colour | |||
Assets in mapping for demining | Able to cover large areas, change detection since the 80s | mage acquisition more dependant on cloud conditions, images available also in near infrared | More independant then satelitte sensors from cloud conditions, required a suitable available air-plane, required national authorization | ? | Vertical or oblique views of small objects of interest (bunkers, …) |