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Figure 8: Virtual Reality (VR) model 
An other alternative usage is the derivation of a CAD model of 
the facade. From this, a 3D view may be created. The model 
shown in Fig. 8 is derived from a manually determined CAD 
model, but may show an impression of the possibilities of the 
near future. 
S. CONCLUSION 
A complicated sequence of operations is necessary to deliver 
DSM and orthoimages which match the high demands in the 
conservation of cultural heritage. Therefore further improve- 
ments and adaptations for this special purpose have to be 
implemented. 
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