Infrared 'vision' promises more road tolls

From New Scientist - Latest Headlines:

A computer vision system that automatically counts the number of people inside a vehicle could make it easier to charge road tolls based upon the number of occupants, and monitor high-occupancy vehicle lanes, researchers say. The system uses infrared light to detect human skin, and a computerised facial recognition system to double-check. Its inventor, John Tyrer of Loughborough University, UK, claims the system is 95% accurate. "The step-change technology is the ability to look inside a car and count people," Tyrer says.

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