Benefit of the angular texture signature for the separation of parking lots and roads on high resolution multi-spectral imagery

Authors:
Qiaoping Zhang;Isabelle Couloigner
Affiliations:
Department of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4;Department of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4
Venue:
Pattern Recognition Letters
Year:
2006

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Abstract

The misclassification of roads and parking lots is one of the major difficulties in automating road network extraction from high resolution remotely-sensed imagery, especially in urban areas. This paper proposes a new integrated approach to road identification on high resolution multi-spectral imagery. The input images are first segmented using a traditional k-means clustering on normalized digital numbers. The road cluster is then automatically identified using a fuzzy logic classifier. A number of shape descriptors of angular texture signature are introduced for a road class refinement, i.e. to separate the roads from the parking lots that have been misclassified as roads. Intensive experiments have shown that the proposed methodology is effective in automating the separation of roads from parking lots on high resolution multi-spectral imagery.