Smooth Transformations between Generalized 3D Building Models for Visualization Purposes
ISBN 978-85-88783-11-9
Authors
1Kada, M.; 2Wichmann, A.; 3Hermes, T.
1UNIVERSITY OF OSNABRÜCK Email: martin.kada@uni-osnabrueck.de
2UNIVERSITY OF OSNABRÜCK Email: andreas.wichmann@uni-osnabrueck.de
3UNIVERSITY OF OSNABRÜCK Email: thermes@uni-osnabrueck.de
Abstract
The generation of highly detailed 3D city models has significantly matured over the last couple of years. Especially for visualization purposes, these models are needed at several levels of detail (LOD) in fine granular steps to avoid pop-up artifacts. Several methods have been proposed for the automatic generalization of 3D building models that simplify the geometry of given models at discrete LODs. In this paper, we present an approach to generate a smooth transformation between two discrete LODs in order to build a continuous LOD sequence. The method is based on mesh simplification techniques that are extended to a restricted use of edge collapse and vertex move operations applied on triangle meshes augmented by additional breaking lines.
Keywords
Generalization; Buildings; Three-dimensional