Sees-Through-Clothing Cam

A camera that can 'see' explosives, drugs and weapons hidden under clothing from 25 metres has been invented. The ThruVision system could be deployed at airports, railway stations or other public spaces.

It is based on so-called 'terahertz', or T-ray, technology, normally used by astronomers to study dying stars. Although it is able to see through clothes it does not reveal 'body detail' or subject people to 'harmful radiation', according to the designers. [...]

Unlike current security systems that use X-rays, the ThruVision system exploits terahertz rays, or T-rays. This electromagnetic radiation is a form of low level energy emitted by all people and objects. These are able to pass through clothing, paper, ceramics and wood but are blocked by metal and water. The system works by collecting these waves and processing them to form an image which can reveal concealed objects. [...]

'You see a silhouette of the form but you don't see surface anatomical effects.'

In addition, the system does not involve any of the 'harmful radiation associated with traditional X-ray security screening', according to the firm."

[Source: BBC News]