Talks and Poster Presentations (with Proceedings-Entry):
F. Rottensteiner, C. Briese:
"A New Method for Building Extraction in Urban Areas from High-Resolution Lidar Data";
Talk: Symposium der ISPRS-Comm. III,
- 2002-09-13; in: "International Archives of Photogrammetry and Remote Sensing",
Volume XXXIV / 3A
In this paper, a new method for the automated generation of 3D building models from directly observed point clouds generated by LIDAR sensors is presented. By a hierarchic application of robust interpolation using a skew error distribution function, the LIDAR points being on the terrain are separated from points on buildings and other object classes, and a digital terrain model (DTM) can be computed. Points on buildings have to be separated from other points classified as off-terrain points, which is accomplished by an analysis of the height differences of a digital surface model passing through the original LIDAR points and a digital terrain model. Thus, a building mask is derived, and polyhedral building models are created in these candidate regions in a bottom-up procedure by applying curvature-based segmentation techniques. Intermediate results will be presented for a test site located in the City of Vienna.
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.