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介绍了一种在建筑物内部空间利用GIS辅助视频监控的新方法。此方法通过一个结点弧段网络模型表示建筑物内部的可达空间,利用一个新颖的拓扑数据结构建立和维护可达空间与视频监控设备之间的空间位置关系。在建立结点弧段网络模型时,考虑了不同的情景,如楼层之间的空间及大型开敞空间等。基于此种模型及数据结构,描述了一个利用此方法进行快速定位可疑移动目标的实例及其实现过程。

A widely-applied fashion of security surveillance,also known as closed circuit television(CCTV),in micro-spatial environments,such as inside a building,is to have security personnel sit in front of a wall of monitors,which corresponds to spatially-distributed video cameras,and respons(e.g.alarms,access control,etc.) on any emergent events or suspicious objects.In particular,if a watched object is mobile,e.g.a theft,security personnel need to keep track of the object s movement through frequently switching t...