Police boost World Cup security with hi-tech facial recognition glasses

Brazilian police will use hi-tech glasses fitted with facial recognition equipment to identify troublemakers at the 2014 FIFA World Cup.

A small camera fitted to the glasses can capture 400 facial images per second and send them to a central computer database storing up to 13 million faces.

The system can compare biometric data at 46,000 points on a face and will immediately signal any matches to known criminals or people wanted by police.

If there is a match, a red signal will appear on a small screen connected to the glasses, alerting the police officer of the need to take further action or make an arrest.

A spesman said the device will be useful to police trying to monitor different locations and events, ranging from airports and bus terminals to concerts and football matches.