DBPapers
DOI: 10.5593/SGEM2014/B21/S8.117

VECTOR MAP OBJECTS RECOGNITION BASED ON A HIERARCHY OF TOPOLOGICAL RELATIONSHIPS

E. Eremeev
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-10-0 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 1, 917-924 pp

ABSTRACT
The input of information in the municipal geographical systems is a complex iterative process. There are many different sources of map. The most common is currently the manual digitizing of maps. But it is a very expensive process especially for city objects. For quick information input, we can use the photo decoding of aerospace images. The algorithm for the realization of this process was developed. It consists of two stages. At the first stage we get a vector objects on a raster map. In the second phase the vector objects are classified. A hierarchical tree is built where each level involves checking of the topological features of the object together with other objects. The lower level of the tree defines a specific layer which includes the analyzed object. This algorithm allows to obtain multi-layer digital map of the city by recognition vector spatial objects of map.

Keywords: topological relationships, spatial objects recognition, vector map

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