基于拓扑分析的居民地自动变化检测方法  

Automatic Detection Method of Residential Area Change Based on Topological Analysis

作　　者：王华[1] 潘励[1] 郑宏[2] 

机构地区：[1]武汉大学遥感信息工程学院,湖北武汉430079 [2]武汉大学电子信息工程学院,湖北武汉430079

出　　处：《地理信息世界》2008年第3期33-37,47,共6页Geomatics World

基　　金：国家自然科学基金重点资助项目(40337055)

摘　　要：提出一种基于拓扑分析的居民地变化检测方法,首先利用同一地区居民地的旧矢量数据,在新正射影像上获得训练样地,进行影像分割,提取居民地,然后运用空间分析的方法自动检测出居民地的六种变化形态。实验证明本算法能够自动提取出变化区域,并得到变化类型,检测正确率达到85%以上,提高了数据更新的效率。Based on topological analysis, an automatic detection method of residential area change is presented in this paper. It is found that the old vector of the same region even at different time is useful to obtain the train samples. By applying old vector, we classified the remote sensing image, and extracted the residential area automatically. Then, topological analysis is applied to detect six different types of change automatically. Experimental results of residential areas detection showed that this algorit...

关 键 词：拓扑分析 居民地 变化检测 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]