ncillary
1 meter.
as some
ymehow
, which
ickscat-
Anselm Schmieder
ter is shown in the map.
Figure 5: Map derived from InSAR data and ancillary map.
6 CONCLUSION
A system for automatic contour line extraction and labeling used in an operational context was described. Progress in
automatic derivation of DEMs from InSAR data request the existence of subsystems as the described one. The system
produces resaonable results for further use in GIS systems. Further improvements may concern some specific questions,
such as the use of general curves instead of lines, avoidance of contour lines intersection, optimal inscription placement
rules and placement of single topographic height points to mark local extrema.
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