Image-based modeling of urban buildings using aerial photographs and digital maps

A VR (virtual reality) simulator which is used for helicopter simulations requires a virtual environment of real world urban areas. However, real urban environments are continuously changing. It is necessary to develop a modeling method that makes direct use of GIS (geographical information system) data which is updated periodically. A flight simulation needs to visualize not only buildings in the near distance but also a large number of buildings in the far distance. We propose a method for modeling urban environments from aerial images and digital maps with relatively little manual work. An image-based method is applied to the urban modeling that considers the characteristics of Korean cities. Buildings in the distance can be presented without creating a large number of polygons. The proposed method consists of a pre-processing stage that prepares the model from the GIS data and a modeling stage that creates the virtual urban environment. The virtual urban environment utilizes the height map of buildings. © 2006 The Authors. Journal compilation © 2006 Blackwell Publishing Ltd.
Publisher
Blackwell Publishing Inc.
Issue Date
2006-05
Language
ENG
Citation

TRANSACTIONS IN GIS, v.10, no.3, pp.377 - 394

ISSN
1361-1682
URI
http://hdl.handle.net/10203/3107
Appears in Collection
OSE-Journal Papers(저널논문)
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