Procedures for geometric rectification of airborne scanner data

Remotely sensed data of airborne systems in rugged terrain are geomtrically distorted by both aircraft movements and topographic influences. Aircraft movements are changes in poition and attitude during the data take. Topography influences the geometry by shifting the pixel location and by affecting the pixel size. The approaches for the geometric rectification procedure can be divided in - non-parametric methods using ground control points - parametric methods using recorded attitude and flight path data in combination with a digital terrain model (DTM) Both methods are discursed and applied