A binocular computer vision system for aerial image pairs

A binocular stereo vision system developed in this paper is described. After preprocessing the aerial image pairs and resampling them along epipolar line, our system uses an area-based hierarchical matching method to find corresponding points. Utilizing absolute orientation, the coordinates of matching points and their parallaxes acquired through stereo matching are converted to actual position and altitude. The final results of the system are recovered surface and Digital Elevation Model (DEM).