International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 
‚Vol XXXV, Part B4. Istanbul 2004 
  
| 3D Model Databases of City | 
  
rut d 
| | Building Texture Database | | Ground Texture Database | | Independent Object Database | 
oh 
| Building Character Database 
PL 
| Antiquity | | Modern Tim 
X 
f N X N 
  
  
  
cs | [ Antiquity | | Modern Times | 
a e 
SN 
A N 
\ 
  
  
  
| Building Character | e Roof Texture | 
| 
Vegetation | 
  
  
  
| Special Building d [^ Side Texture | 
| 
Water System e 
  
  
  
Window | 
| Outside Stair 4 | 
- 
Traffic Light 
Street | 
  
  
  
Others sed 
L 
Others 
i ) 
| Street Lamp | 
[e | 
bi | 
|. | 
Others a 
  
ow of 
Fig.3 3D Model Databases of City 
  
Fig.4 Reconstructed City Scene 
7. CONCLUSIONS 
When we want to reconstruct the real world in a digital 
environment, it is the first task that implementing the 
abstraction and description of reality. It means that we should 
firstly determine the description contents, abstraction method 
and expression model. So aiming at solve these problems, we 
buiit the 3D Geographic Element System, and put forward 
concepts of Spatial Granularity for 3D Description and 3D 
Partition of Building, and founded 3D Model Databases of City 
to reconstruct scenes efficiently. By put these methods and 
technologies in practice of Digital Weihai Project, the 
conclusion can be drawn that the efficiency could be increased 
greatly by applying them. 
References 
|  K. Fujii and T. Arikawa. Urban Object Reconstruction 
Using Airborne Laser Elevation Image and Aerial 
Image[J]. IEEE Transactions on Geoscience and Remote 
Sensing, 2002, Vol40 No.10 
Modeling of salt domes from 
point sets[C], XXII General 
N 
Lattuada R., Raper J. 
scattered non-regular 
106 
Assembly of the European Geophysical Society, Vienna, 
Austria , April 1997 
Mao-Lin Chiu. Constructing a 3D Urban Model for Urban 
Design and Visual Simulation - A Case Study of the 
Tainan City [C]. Proceedings of the 2001 Automatization 
Digital Engineering Surveying Symposium, 2001 
Roland Billen. Introduction of 3D Information in Urban 
GIS: A Conceptual View[J]. International archives of 
Photogrammetry and Remote Sensing, VoIXXXIII, Part3A, 
2000 
Turner A K. Three-dimensional modeling with geo- 
scientific information systems[M]. NATO  ASI354, 
Dordrecht:Kluwer Academic Publishers, 1992 
Zhu Qing, et al. Design of 3D Model in GIS[J]. Geomatics 
and Information Science of Wuhan University, Vol.28 
No.3, 2003 
Zlatanova S. et al. 3D GIS: Current Status and 
Perspectives[C], Proceeding of Symposium on Geospatial 
Theory, Processing and Applications, Ottawa, 2002 
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