Annett Faber
e We will use the estimated orientations for improving the feature extraction, thus decreasing the orientation errors of
the extracted road segments.
The grouping of the road segments will then lead to a first description of the road network. By using the hough transform
inside the segmented regions we can obtain a more exactly description of the road network alternatively. Further work
will be done in integrating multispectral information to presegment the scene with respect to vegetation, in order to focus
on the urban area alone.
7 ACKNOWLEDGMENTS
The project was founded by the BMBF (FKZ: 50EE9651).
REFERENCES
Barzohar, M. and Cooper, D. B., 1996. Automatic finding of main roads in aerial images by using geometric-stochastic
models and estimation. IEEE Transaction on Pattern Analysis and Machine Intelligence 42(7), pp. 707—721.
Baumgartner, A., 1998. Extraction of Roads from Aerial Imagery Based on Grouping and Local Context. In: International
Archives of Photogrammetry and Remote Sensing, Vol. XXXII Part 3/1, pp. 196—201.
Fischler, M. A. and Heller, A. J., 1998. Automated techniques for road network modeling. In: Proceedings of DARPA
Image Understanding Workshop, pp. 501—516.
Fischler, M. A., Tenenbaum, J. M. and Wolf, H. C., 1981. Detection of roads and linear structures in low resolution
aerial images using multi-source knowledge integration techniques. Computer Graphics and Image Processing 15(3),
pp. 201—223.
Fôrstner, W., 1993. A future of photogrammetric research. Technical Report P-ipb-93/7, Institut für Photogrammetrie,
Universität Bonn.
Fôrstner, W., 1994. A Framework for Low Level Feature Extraction. In: J. O. Eklundh (ed.), Computer Vision - ECCV
94, Vol. II, LNCS, Vol. 802, Springer, pp. 383-394.
Fuchs, C., 1998. Extraktion polymorpher Bildstrukturen und ihre topologische und geometrische Gruppierung. München.
DGK bei der Bayerischen Akademie der Wissenschaften, Reihe C, Heft 502.
Hinz, S., Baumgartner, A., Steger, C., amd W. Eckstein, H. M., Ebner, H. and Radig, B., 1999. Road extraction in rural
and suburban areas. In: W. Fórstner, C.-E. Liedtke and J. Bückner (eds), SMATI '99, Workshop on Semantic Modeling
for the Acquisition of Topographic Information from Images and Maps, Institut für Theoretische Nachrichtentechnik und
Informationsverarbeitung, Universität Hannover.
Meer, P., Mintz, D. and Rosenfeld, A., 1990. Robust recovery of piecewise polynomial image structure. Technical report,
Center for Automation Research.
Price, K., 1999. Road grid extraction and verification. In: Automatic Extraction of GIS Objects from Digital Imagery,
Vol. 32number Part 3-2W5, ISPRS, München.
Sennet, R., 1991. Civitas: Die GroBstadt und die Kultur des Unterschieds.
Steger, C., 1996. Extraction of curved lines from images. In: 13th International Conference on Pattern Recognition,
Vol. IL, pp. 251-255.
Steger, C., Glock, C., Eckstein, W., Mayer, H. and Radig, B., 1995. Model-based road extraction from images. In:
A. Gruen, E. Baltsavias and O. Henricsson (eds), Automatic Extraction of Man-Made Objects from Aerial and Space
Images (II), Birkháuser Verlag, Basel, Switzerland, pp. 275—284.
Steger, C., Mayer, H. and Radig, B., 1997. The role of grouping for road extraction. In: A. Gruen, E. Baltsavias and
O. Henricsson (eds), Automatic Extraction of Man-Made Objects from Aerial and Space Images (II), Birkhäuser Verlag,
Basel, Switzerland, pp. 245-256.
280 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B3. Amsterdam 2000.
