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Figure 8. Digitised polygons. 
6. CONCLUSIONS 
The previous sections presented an outdoor ARS used as part of 
a tool for earthquake disaster management. Possible hardware 
configurations have been shown and possible data available in 
case of an disaster has been discussed. A method to establish 
the match between real-world scenery and virtual extension and 
a new method to reconstruct polygonal shapes is given. The 
results of first experiments of the method to reconstruct the 
shape of polygonal objects have been shown. From the results 
in section 5 it can be concluded that, despite minor difficulties, 
the methods are working and might be of use in the case of an 
disaster. To prove the usability in that case a larger set of virtual 
planning possibilities has to be offered by the system and the 
ARS has to be tested using real damages. 
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ACKNOWLEDGEMENTS 
The author thanks Eberhard Steinle and Alexandre Coelho for 
suggestions and assistance. The project was supported by the 
Deutsche Forschungsgemeinschaft DFG (German Research 
Society) in the context of its Collaborative Research Center 
461.