摘要
总结了常见的不确定性线状目标描述模型以及确定性线状目标之间拓扑关系的描述模型 ,并在此基础上提出了一种定量化分析方法 。
ion: Because of notional or semantic fuzziness and imprecise measurements, many data in spatial databases are imprecise. In this case, linear objects are not crisp lines but some narrow zones that include true lines. And we must distinguish the topological relations between these linear objects. In this paper, the descriptive methods of uncertain linear objects in the present are summarized, and the 9-intersection model for describing topological relations between crisp linear objects is applied. Then the topological relations between uncertain linear objects are described and determined by a qualitative analyzing method.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2004年第9期827-831,共5页
Geomatics and Information Science of Wuhan University
基金
国家教育部高校骨干教师基金资助项目 ( 2 0 0 0G0 7)
关键词
线状目标
空间拓扑关系
定量分析
不确定性
linear object
spatial topological relation
qualitative analysis
uncertainty