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中文摘要：
提出了一种基于结构化空间关系信息的结点层次匹配方法。指出了在结点匹配中存在的不足,在此基础上,顾及结点及其连接弧段的结构特征,结合距离、拓扑和方向三类约束,对候选匹配点进行逐层筛选,以得到最佳匹配结果。实验表明,该匹配方法是一种行之有效的方法。
英文摘要：
A hierarchical approach is proposed to match the corresponding nodes from two different datasets.In this approach,node types are first of all distinguished and described,and the limitations of existing description methods are pointed out.On this basis,structural properties of node and its linked segments are considered to build the three geometric constraints,including distance,topology,and direction.They are further used to filter the candidates for matching reference nodes.Indeed,this process is of a hierarchy.Hence,it is also called a hierarchical approach.An experiment is employed to illustrate the rationality of the approach proposed in this paper.
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