Extracting contour lines from common-conditioned topographic maps
Yang Chen, Runsheng Wang, Jing Qian · IEEE Transactions on Geoscience and Remote Sensing · 2006
This paper addresses the problem of contour lines extraction from scanned topographic maps. A novel method called "local window segmentation" is developed and used to overcome the difficulty of the gaps and thick lines. Experiments and evaluations on a number of well- and common-conditioned topographic maps are provided.