时空数据的动态关联技术研究

为了检测时空数据之间的发展变化关系,本文研究时空数据的动态关联技术,提出了一种动态关联算法和一种基本的时空变化类型。该算法用几何特征和属性特征相结合的方法进行匹配和变化检测,可以匹配时空对象并自动提取变化情况,能够解决一对一、一对多、多对一和多对多的变化关系,并且可以检测出时空对象的移动变化情况。

Dynamic correlation technology of spatio-temporal data

In order to detect the developing and changing relationship of spatio-temporal data,this paper studied the dynamical correlation technology of spatio-temporal data,proposed and implemented a dynamic correlation algorithm and a basic type of spatio-temporal change.This algorithm combined geometrical correlation with attributes correlation to launch matching and detecting changes,so that it matched spatio-temporal data and extracted changes automatically.This algorithm could solve the relationships as one to one,one to multi,multi to one and multi to multi changes,and detect the moving and changing states of spatio-temporal objects.