Moving forward, LTS5 hopes it can use its computer vision to detect other states, such as distraction, and to read your lips, which could considerably help with in-car voice recognition. Maybe such a system could disable your car's horn, too. Maybe it would pre-charge your breaks, ready for when you tailgate the guy in front of you? Or maybe, if your car has some autonomous driving features, they could quietly take over - so you think you're still driving, but it's actually your car that's preventing you from swerving out of your lane or piling into the car in front of you. Because this is a prototype, all the EPFL system (Opens in a new window) does is tell you when you're suffering from road rage - but presumably a production version of the technology would do a lot more. If your face registers "anger" or "disgust" for long enough, the software decides that you are stressed out and probably about to do something stupid. As you can see in the video below, the software tracks your eyes, mouth, and nose, and from their movements it can work out what emotion you're currently experiencing. Fear, anger, joy, sadness, disgust, surprise, and suspicion are so intrinsic to human nature that they have very specific muscle movements - movements that can be fairly easily picked up with an infrared camera and some computer vision software. This work, developed by EPFL's Signal Processing 5 Laboratory (LTS5) in association with PSA Peugeot Citroen, uses an infrared camera placed behind the car's steering wheel to track the seven universal hard-coded emotions that your face can show. The idea behind this system is that, when you're irritated or angry, you become a more aggressive driver and less attentive - leading to more accidents. The same technology can also be used to measure tiredness and fatigue, by measuring the percentage of your eyelid closure, and then warning you to take a break before you fall asleep at the wheel. European car safety researchers have developed a camera-based system that watches your facial expressions while you drive, and then uses highly accurate emotion detection algorithms to work out when you're suffering from road rage.
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