摘要
针对道路网线要素特点,提出了基于投影的道路网信息几何匹配方法。根据线段斜率,对线段进行投影、分割,提取线要素特征点,将复杂的道路网匹配转化为特征点匹配,可解决复杂的多对多匹配。通过渐进式的匹配策略,逐步、快速缩小匹配范围,提高了匹配效率。通过实验合理地调整匹配阈值,减少漏匹配与误匹配,提高整体匹配准确率。结果表明,本算法效率高,可靠性好,符合应用需求。
This paper puts forward a geometry matching method for transportation road net- work data based on projection. Characteristic points can be extracted from lines by projection and segmentation, so complex matching of road networks is converted into a characteristic point matching problem. An incremental matching strategy was designed, that narrows the range of matching and improves matching efficiency. A proper matching threshold can not only reduce leakage match and mismatch but also improves matching accuracy. Experimental results show that this method can obtain ahigher correct matching rate that meets application requirements.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2013年第9期1113-1117,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41001313
41101362)
关键词
道路网
几何匹配
投影
特征匹配
匹配策略
transportation road network
geometry matching
projection
characteristicmatching
matching strategy
