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The raster-vector conversion of remote sensing image is a very important task in the extraction and updating of linear objects in cartographic processes. In this paper we present a vectorization method, based on constrained Delaunay triangulation, for line extraction. The constraints are provided by a preprocessing step insuring that these edges belong to line structures in the original image. The...
Vectorization, i.e. raster-to-vector conversion, is a central part of graphics recognition problems. Graphics recognition is concerned with the analysis of graphics-intensive documents, such as technical drawings, maps or schemas. In this paper we present a generic algorithm for line extraction based on image vectorization. A pre-processing step provides points that are judged to belong to linear...
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