Background
Components
Intelligence
Geoinformation
Satellite
Pollution
Oil Reserves
Economics
Risks
International
Chad
Cameroon
Oil developments
Mediation
Information Extraction from satellite images

 Multispectral remote sensing

    MSS: Landsat
    Temporal interval:  1972 onward
    Spatial resolution:  80 m (~800 m quick look) - Extent:  185 km

    Optical region

    • green (0.5-0.6 micron)
    • red (0.6-0.7 micron)
    • ir1 (0.7-0.8 micron)
    • ir2 (0.8-1.1 micron)

Mosaic of Landsat color composite produced using TeraVue on extracted data from USGS Internet on-line data store

 

 MSS image interpretation

    Color theory:  3 dimensions
    Additive:  blue-green-red (light)
    Subtractive:  cyan-magenta-yellow (ink)
    False color composites : combinations of three bands
    Spectral signatures

 Radar remote sensing

  • Characteristics of Radar
    Microwave region
    Active sensor
  • Source of data
    Aerial
    Satellite based (JERS, ERS, Radarsat)

 Radar interpretation

  • Tonal Patterns
    Geometry of radar illumination
  • Surface Roughness
    Smooth (specular)
    Grass, savanna
    Water:  Ocean, river
    Rough (diffuse) : forest
  • Radar - Examples
    Corner reflectors - urban
    Texture image processing
    Method for inferring structural information

Interpretation of radar imagery on the Doba area in Chad after integration using TeraVue

Source
http://southport.jpl.nasa.gov/GRFM/

 

Geointelligence - ATHENS Course 2005 - ENSMP/NTNU - Contact web master - Last update : 9 March 2005