Network snakes-supported extraction of field boundaries from imagery

Authors:
Matthias Butenuth;Christian Heipke
Affiliations:
Institute of Photogrammetry and GeoInformation, University of Hannover, Hannover, Germany;Institute of Photogrammetry and GeoInformation, University of Hannover, Hannover, Germany
Venue:
PR'05 Proceedings of the 27th DAGM conference on Pattern Recognition
Year:
2005

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Abstract

A fully automatic method to extract field boundaries from imagery is described in this paper. The fields are represented together with additional prior knowledge in the form of GIS-data in a semantic model. The approach consists of two main steps: Firstly, a segmentation is carried out in a coarse scale resulting in preliminary field boundaries. In a second step network snakes are used to improve the geometrical correctness of the preliminary boundaries taking into account topological constraints while exploiting the local image information. Focussing on the network snakes and their specialties the results demonstrate the potential of the proposed solution.