Image segmentation and image matching for 3D terrain reconstruction

A 3D terrain reconstruction method using compound techniques is proposed. Normal matching results only supply a DSM (digital surface model). This means that the matching results may be on the top of objects such as houses or trees. This kind of matching results could not supply an accurate DEM (digital elevation model). The proposed method is a more efficient method for determining elevations from overlapping digital aerial images and satellite images. It combines image analysis and image matching methods and supplies a more accurate DEM