DEM generation from stereo AVNIR images Original Research Article

This paper describes the methodology of a digital elevation model(DEM) generation from stereo AVNIR images and the results of experiments for accuracy evaluation of generated DEM. The accuracy of the satellite position and attitude of the product is not sufficient and they are adjusted by the collinearity condition in photogrammetry using some ground control points(GCPs). Stereo points are acquired by the feature based matching utilizing both square correlation matching and least square matching. The experiments proved that stereo matching can not be performed precisely in some regions because of the remaining striping noises and the low contrast of the AVNIR image.