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成天盯着监视摄像头是件冗长而无聊的工作。即使整天紧盯屏幕,也很难分辨出可疑现象。假如一个相貌平常的人在几天的时间里多次穿越地铁站,但是没有乘坐地铁。这种行为可疑吗?也许吧。但是一般的警卫会察觉到吗?未必。这也是为什么人们开始着手研制智能监控系统的原因之一。
Staring at the surveillance camera all day is a long and boring job. Even staring at the screen all day, it is difficult to distinguish suspicious phenomena. If a normal person traverses the subway station several times in a few days, but does not take the subway. Is this behavior suspicious? Maybe. But the general guard will detect it? Not necessarily. This is one of the reasons why people started to develop intelligent monitoring system.