Talks and Poster Presentations (with Proceedings-Entry):
F. Rottensteiner, J. Trinder, S. Clode, K. Kubik:
"Automated Delineation of Roof Planes from LIDAR Data";
Talk: ISPRS Workshop Laserscanning 2005,
- 2005-09-14; in: "ISPRS Workshop Laser scanning 2005",
G. Vosselman, C. Brenner (ed.);
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences,
In this paper, we describe an algorithm for roof line delineation from LIDAR data which aims at achieving models of a high level of
detail. Roof planes are initially extracted by segmentation based on the local homogeneity of surface normal vectors of a digital
surface model (DSM). A case analysis then reveals which of these roof planes intersect and which of them are separated by a step
edge. The positions of the step edges are determined precisely by a new algorithm taking into account domain specific information.
Finally, all step edges and intersection lines are combined to form consistent polyhedral models. In all phases of this workflow,
decision making is based upon statistical reasoning about geometrical relations between neighbouring entities in order to reduce the
number of control parameters and to increase the robustness of the method.
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Created from the Publication Database of the Vienna University of Technology.