Can Self-driving Cars Behave Like Humans Do?

Posted: Apr 29 2016, 10:29am CDT | by , in News | Cars & Vehicles

 
Can Self-driving Cars Behave like Humans Do?
The Mercedes Benz F 015 self-driving stands on March 13, 2016 at the Dam square in Amsterdam. This model is presented for the first time in Europe. / AFP / ANP / Bart Maat / Netherlands OUT (Photo credit should read BART MAAT/AFP/Getty Images)

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The image-recognition technology in a self-driving car can learn to respond to unfamiliar objects on the road akin to the responses of a human driver, say researchers.

Imagine heading home in a self-driving car and visibility is poor due to heavy rain. All of a sudden, a blurred shape appears on the road. What would you want the car to do -- hit the brakes risking a crash behind you or should it just keep driving?

"Human beings in a similar situation will usually be able to tell the difference between, say, a distracted cyclist who's suddenly swerving and road-side waste swept up by the wind," said Jonas Kubilius from Belgium university KU Leuven.

According to Kubilius and co-researcher Hans Op de Beeck, a machine like self-driving car can be trained to recognize images and tell us what the unfamiliar shape looks like.

"Current image-recognition technologies are taught to recognize a fixed set of objects," Kubilius explained, adding that "they recognize images using deep neural networks: complex algorithms that perform computations somewhat similarly to the neurons in the human brain."

Kubilius's team found that deep neural networks are not only good at making objective decisions ('this is a car') but also develop human-level sensitivities to object shape ('this looks like ...').

"In other words, machines can learn to tell us what a new shape -- say, a letter from a novel alphabet or a blurred object on the road -- reminds them of. This means we are on the right track in developing machines with a visual system and vocabulary as flexible and versatile as ours," Kubilius added.

This, however, does not mean that we should safely hand over the wheel.

"We are not there just yet. And even if machines will at some point be equipped with a visual system as powerful as ours, self-driving cars would still make occasional mistakes," Kubilius noted in a paper published in journal PLoS Computational Biology.

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