Correcting Inconsistency on the Boundary of Neighboring Maps
Won-Tae Kim, Hak-Cheol Kim, Ki-Joune Li, Byeung-Ik Ahn, Seung-Ryong Kim · Journal of Korean Society for Geospatial Information System · 1999
In order to correct mismatches between neighboring digital maps, the middle line method has been widely used. However, it may result in not only a corruption of the topological consistency between the objects near to boundaries but also degeneration of accuracy. In this paper, we propose two edge-matching methods to overcome the problem of the middle line method. The first method is based on the rubber sheeting, which performs an elastic transformation for the objects located around the boundaries. The second method transforms the geometry of objects by the function of the distance from the boundary. These methods have important advantages that they preserve the topology of the original maps and improve tile accuracy, compared with the previous methods.