基于形态分解运算的地形图要素自动提取与识别

针对地形图识别中的要素自动分割问题，提出了基于形态分解运算的提取算法．本算法根据形态特征的不同将地图要素进行结构分解，然后运用腐蚀、膨胀、改进的RLS变换等算子对相同特征的结构进行分类综合，最后依据要素特征组合的整体分析实现了地图上各要素的提取．同以往的算法相比，本算法运算简单，且能更好的解决地图要素的重叠及粘连问题．此算法已编程实现，实验证明效果比较理想。

Automatic Extraction and Recognition of Elements in Topographic Maps Based on Morphological Decomposition

Aimed at the automatic segmentation of elements in topographic maps, a new effective algorithm based on morphological decomposition is presented. According to different morphological feature, the structure of map elements is decomposed, and then elements of the same character are extracted and combined based on the algorithm of erosion, dilation, improved run-length smearing. As a result, the elements are extracted correctly with the global character analysis and the problem of overlap and adherent among element is resolved efficiently. The algorithm has been implemented on computer and has a good result.