A DIGITAL STEREOPHOTOGRAMMETRIC SYSTEM IN A GIS ENVIRONMENT

摘要

Geographic Information Systems (GIS) have become widely used tools for handling geographic and spatial data. Processed with digital stereophotogrammetric instruments, remote sensing or aerial imagery can be used to define new layers containing the whole 3-D potential of the landscape. Information like orthophotos, DEM data and linear features derived from digital plotters form a geometrically precise database for spatial measurements and operations. Moreover, existing GIS vector data may serve as knowledge base for plotting, supporting the automatic correlation process. Simultaneous display with the raster data on the stereo monitor is a prerequisite for an interactive or semi-automatic update of the vector data. This paper discusses first experiences combining the Advanced Digital Stereophotogrammetric System of the TUB and the ARC/INFO GIS.