3 D RECONSTRUCTION OF ROADS AND TREES FOR CITY MODELLING

Laser altimetry is a valuable data source for the production of 3D city models. For applications of 3D city models that are to provide a realistic impression of the urban environment, modelling of the buildings only is insufficient. This paper presents methods for the reconstruction of the street surfaces by combining airborne laser data with 2D information from a cadastral map. Locations of trees are also extracted from the laser data. With modelled street surfaces, trees and water surfaces added to reconstructed buildings a more realistic looking city model can be obtained.