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Aerial mapping and remote sensing takes another step forward with this method of modelling lidar data. The usual form of presentation, hill shade, uses a point source to show up surface features. Sky-view factor simulates diffuse light by computing how much of the sky is visible from each point. The result is a greatly improved visibility--as shown here by its use on a test site of known topography in Slovenia. Keywords: sky-view factor, relief visualisation, historic landscape, airborne laser scanning, lidar, Introduction Airborne laser scanning (also known as lidar imaging) has provided major advances in remote sensing. Because the technology enables production of digital elevation models of very high resolution (better [...]