摘要
针对目前基于“结点-弧段”模型的道路网匹配算法在多尺度条件下匹配效率不高的问题,提出了一种顾及道賂连接关系的多尺度道路网匹配算法。主要利用道路网尺度变化前后道路间连接关系不变的特征进行道路的粗匹配,避免传统粗匹配的阈值难以设置的问题,并根据道路结点的相似性进行精确匹配。首先对道路网数据进行预处理,识别和化简道路网中的微观结构,将道路网连接成stroke;然后将道胳网以stroke为单位抽象成为对偶图,将道路网匹配问题转换为对偶图的结点匹配,利用结点之间的连接关系进行粗匹配,并依据道略的长度、方向、距离等因素对结点进行相似性度量,完成道路的精确匹配,从而实现道路网的匹配。最后以不同尺度的賂网数据进行实验,结果表明该匹配方法的正确率较高。
ed to dual graph with stoke as the unit,so that the road network matching is transformed to the node matching of the dual graph.Thirdly,the coarse matching is conducted using the connection between nodes.The similarity of nodes is measured according to the length,direction,distance and other factors of the road to complete the accurate matching of the road and then the matching of road network.At last,an experiment is conducted with road network data in different scales,and the results show that the matching accuracy of the proposed method is high.
作者
马超
熊顺
MA Chao;XIONG Shun(Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China)
出处
《测绘科学与工程》
2020年第5期54-60,共7页
Geomatics Science and Engineering
