Shoichi Horiguchi
5 CONCLUSIONS
We proposed a new technique to reconstruct surface models (block, road and intersection surface models ), and a way to
combine the surface models with building models. Especially we showed to reconstruct the ups and downs road and
block surface as well as continuous ground surface by using road network in the 2D digital map.
We reconstructed a part of an urban area using the proposed approach. Our conclusions are as follows.
Minimizing the distance between points of Boundary type and lines of building shape is effective in matching DEM
with digital 2D map information. In this case, the Boundary type points are acquired by extracting Gaussian and Mean
curvature components .
We apply the MDL principle to optimize the road models. The optimized surface models are compact and easy to use.
The building shape shown on digital 2D maps is effective in acquiring object shape.
The proposed technique allows the reconstruction of the 3D digital city for urban simulations.
ACKNOWLEDGMENTS
The authors would like thanking Mr. Hase and other group members for several discussions on the issues related to our
approach.
REFERENCES
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420 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B3. Amsterdam 2000.
