[2010.06.10]Peek-a-boo 噼-咔-吥:机场安检新方法- 季刊Technology ...
本帖{zh1}由 7colorwolf 于 2010-6-14 14:32 编辑

Monitor
科技前沿


Peek-a-boo
噼-咔-吥


Security technology: A new approach to airport security tests travellers’ recognition of incriminating stimuli
安全技术:机场安检新方法,测试旅客是否识别出与犯罪有关的刺激物


Jun 10th 2010
2010年6月10日


DESPITE all the effort put into it, and the annoyance caused to innocent travellers, airport security is a pretty haphazard affair. That could change if Ehud Givon has his way. Mr Givon is head of a small Israeli firm called WeCU, which thinks its technology can spot suspicious individuals that traditional methods miss.

尽管用了各种方法,以及给无辜旅客们带来的烦恼,机场安全仍然是件无头绪的事情。如果埃胡德·吉万(Ehud Givon)的办法奏效,这种状况就有可能改变。吉万先生是以色列一家叫做WeCU的小公司的负责人,该公司认为自己的技术能够找出传统方法无法找到的嫌疑人。

WeCU’s approach relies on displaying stimuli, such as photographs of individuals who might be known to terrorists but not to ordinary people, or code words that intelligence has discovered are associated with particular operations, and observing what happens. The trick is that the observation is done automatically, and does not rely on the subjective impressions of tired and bored security guards.

WeCU的方法是向乘客显示刺激物,例如恐怖分子可能认识但普通人不认识的人的照片,或者是情报部门发现的与特定行动有关的暗语,然后观察他们的反应。特别之处在于这种观察是自动进行的,不依靠疲惫厌烦的安全警卫们的主观印象。

When confronted with such stimuli, someone who is unfamiliar with them will merely be bemused and ignore them. Someone who knows what they are, however, may become concerned, and undergo an increase in body temperature, heart rate and breathing rate. WeCU’s apparatus is able to monitor the first two of these using an infra-red camera. This captures the heat pattern of blood vessels near the skin, betraying both changes in overall temperature and in heart rate. If necessary, the individual can be ushered away for further questioning.

遇到这类刺激物时,那些不熟悉它们的人只会觉得茫然,因而忽视它们。但是那些知道它们是什么的人,可能会集中注意力,进而体温上升、心跳加速、呼吸加快。用一个红外摄像头,WeCU的设备能够监视前两者。这个设备能够获取皮肤表面血管的温度信息,它们透露出总体温度和心跳频率的变化。如果有必要,单个乘客会被带离进行进一步的询问。

The beauty of this system is that the bank of stimuli is varied and unpredictable. Even a skilled, well practised suspect who is aware of the system and who tries to prepare for the screening cannot know where the stimuli will come from and how they will appear.

这个系统的漂亮之处在于刺激物种类繁多且无法预料。就算是一名有经验的、受过良好训练的、知道这个系统的存在并对显示屏作好了心理准备的嫌疑人,也不知道刺激物将会来自何处以及它们会是什么样子。

The system has been demonstrated to the authorities in Germany, Israel and the United States. Mr Givon claims that tests with hundreds of subjects in both laboratory and real-life situations have shown that 95% of those flagged up are indeed “persons of interest”. America’s Department of Homeland Security has shown particular interest in WeCU. If further tests confirm its advantages, travellers in America may soon find themselves looking at unexpected and baffling slide-shows when they pass through the airport.

这个系统已经给德国、以色列和美国当局演示过。吉万声称,在实验室和真实环境中对数百名被试进行的测试表明,那些对这个系统有反应的人中,有95%的人的确是“案件相关人”。美国国土安全部已经对WeCU表示出兴趣。如果进一步的实验确证了它的优点,美国的乘客们很快就会发现自己在通过机场时会看到一些意想不到且令人困惑的幻灯片。

The Economist Technology Quarterly | Technology Quarterly
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