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Geometric and radiometric correction of satellite imagery

Geometric and radiometric correction of satellite imagery. Maa-57.2040 Student Exercise Harri Kaartinen 18.10.2007. Task. Correct satellite image geometrically using different mathematical models Create orthoimages using Rational Functions and different interpolation methods

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Geometric and radiometric correction of satellite imagery

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  1. Geometric and radiometriccorrection of satelliteimagery Maa-57.2040 StudentExercise Harri Kaartinen 18.10.2007

  2. Task • Correct satellite image geometrically using different mathematical models • Create orthoimages using Rational Functions and different interpolation methods • Polynomial geometric correction (1. and 2. degree) • Compare results visually and using difference images • Correct satellite image radiometrically • Atmospheric correction (ATCOR2 and ATCOR3) • Compare the spectral qualities of targets measured from the corrected image to reference

  3. Data • Landsat-5 TM orAstersatelliteimage • Digital elevationmodel (DEM) • Referenceimage: Corine2000 TIFF-image • Instructions Tools • PCI Geomatics software • OrthoEngine (geometriccorrection) • Focus (radiometriccorrection, analysis)

  4. Satellite image Ref: Corine image DEM OrthoEngine

  5. Output • Geometrically corrected satellite images • Radiometrically corrected satellite images • Spectral values measured from images • Reporting the results ”Logistics” • Markus willgive info on computers, data locations, deadlines • Questions to Markus, Juho, Katri or Harri • Whileworking, remember to saveyourprojectregularly!

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