摘要
研究了基于符号连通体特征差异的不精准推理方法,分析了基于行邻接图的点、线、面符号图段连通体的特征,并根据三种符号在几何特征、形状特征和拓扑关系上的差异,提出了七种易于表达的特征参数,基于特征参数实现了线符号的自动提取。
A non-precise reasoning method used of differences in the characteristics of segment connectivity is put forward for separating line symbols from other symbols.Using line adjacency relations,seven kinds of easy-to-expression characteristic parameters are presented according to the differences in geometrical features,shape features and topologic relationship.The parameters are estimated step by step and line-elements are automatically extracted.
出处
《测绘信息与工程》
2010年第6期46-48,共3页
Journal of Geomatics
关键词
图段连通体
地图识别
几何特征
形状特征
拓扑关系
segment connectivity
map recognition
geometrical features
shape features
topologic relationship
