Teaching Cars To Feel Your Pain

Your car will one day read your face, the better to understand you—and humor you

1 min read
Teaching Cars To Feel Your Pain
Image: EPFL-LTS5/PSA

Now we drive our cars; in the future, they'll drive us. In between, though, the division of labor will get a little murky, and there could be an unfortunate failure to communicate. Our cars will just have to learn to read us better.

The car that can see a driver's emotional state written on his face could anticipate a bout of road rage and head it off. It could offer advice, or it could just humor the poor, carbon-based life-form. "Yes, that fellow in the red sports car really was rather thoughtless," the car might say, sympathetically. "They really shouldn't let people—I mean, people like himon the road, should they?"

The facial-recognition part of that scheme is under investigation at the Signals Processing Laboratory of the École Polytechique Fédéral, in Lausanne, Switzerland. Researchers trained the system on photos to identify anger or the closely related emotion disgust, then validated the system by testing it on videos, including many taken inside a moving car (provided by the French auto maker Peugeot Citroën, a collaborator in this research).

 

There are five other basic emotions that future face-reading systems may tackle. This online test lets you measure your own ability to read these emotions. 

The researchers say they still have problems coping with the diverse ways in which different people express an emotion. They propose to have the car engage in on-the-job learning: it would update its database again and again, based on the face of just one person—the driver.

Another problem is how to evaluate faces in real time. That job will require the development of faster algorithms for deconstructing the many combinations of muscular motions on the face. Biometricians recognize nearly 50 key motions of this sort, called "facial action units.

The Conversation (0)

We Need More Than Just Electric Vehicles

To decarbonize road transport we need to complement EVs with bikes, rail, city planning, and alternative energy

11 min read
A worker works on the frame of a car on an assembly line.

China has more EVs than any other country—but it also gets most of its electricity from coal.

VCG/Getty Images
Green

EVs have finally come of age. The total cost of purchasing and driving one—the cost of ownership—has fallen nearly to parity with a typical gasoline-fueled car. Scientists and engineers have extended the range of EVs by cramming ever more energy into their batteries, and vehicle-charging networks have expanded in many countries. In the United States, for example, there are more than 49,000 public charging stations, and it is now possible to drive an EV from New York to California using public charging networks.

With all this, consumers and policymakers alike are hopeful that society will soon greatly reduce its carbon emissions by replacing today’s cars with electric vehicles. Indeed, adopting electric vehicles will go a long way in helping to improve environmental outcomes. But EVs come with important weaknesses, and so people shouldn’t count on them alone to do the job, even for the transportation sector.

Keep Reading ↓Show less