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Face-Scanning Sunglasses
Crowds at the 2014 World Cup in Brazil will be subjected to face-scanning software hidden in the sunglasses of police.The new technology, which consists of a small camera fitted to the glasses, can capture 400 facial images per second and transmit them to a central computer database, which can store up to 13 million faces. Working at a distance of up to 50 meters (164 feet), the devices will help law enforcement identify those involved in brawls and other illegal activity.
面部扫描太阳镜
这东西原理简单，就是太阳镜里隐藏了摄像头，每秒可以捕捉400张脸并发送到可以储存13w张脸中央数据库里识别，有效工作距离达50米，在大规模赛事中将有奇效，据说将成为2014年巴西世界杯的警察装备。
