Full text: XVIIIth Congress (Part B3)

. c) Height map 
:ture are placed 
cape model re- 
al images. The 
tics: roads are 
hibit a continu- 
p was inserted. 
km x 2km) con- 
texture map of 
of the scene in 
phic computer. 
  
  
    
Fig. 7: Synthesized view of landscape model with continuous roads and elevated forests 
7. CONCLUSION 
The presented system exploits prior knowledge about the 
scene to improve the realism of the model. The explicit 
knowledge representation with semantic nets and rules eases 
the adaptation of the knowledge base to new tasks. The ad- 
vantage of the system is that the knowledge can constrain the 
model parameters and select object specific surface primi- 
tives. Occluded object parts and lost details due to image res- 
olution are added to obtain a consistent model. Modelling 
takes care of what is important for a realistic impression of a 
human observer, e.g. planar roads and height steps at forest 
edges. 
Further work will focus on the development of the control for 
interpretation and exploit multiple sensors and especially 
prior interpretations of the scene represented in the german 
topographic and cartographic information system ATKIS. 
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