摘要：This paper presents experiments for realistic landscape visualization using high resolution digital aerial photographs
and elevation modeis. The natural environment of a river in
northern Switzerland is visualized. Photogrammetrically
measured digital elevation data and ortho-rectified remote
sensing imagery (Landsat Thematic Mapper/TM and aerial
photographs) are combined to compute realistic 3D views of
the landscape. To renderthe landscape more realistically, the
digital elevation model (DEM) is transformed to a digital surface model (DSM), representing the surface and including
objects like forests or bushes. For this transformation land
cover information and GIS tools were used. Unnaturally looking
vertical borders between different land cover classes
were suppressed by interpolating transition zones. Additionally,
3D objects (trees) are used in the foreground to increase
the realism of the views.
