A clear view through fog of city surveillance

CCTV—closed-circuit television—is widely used to carry out surveillance in a wide range of environments from military installations to shopping centres. Modern video surveillance, with recording and playback facilities, ...

Computer Sciences

DNA techniques could transform facial recognition technology

When police in London recently trialled a new facial recognition system, they made a worrying and embarrassing mistake. At the Notting Hill Carnival, the technology made roughly 35 false matches between known suspects and ...