Most autonomous vehicles in testing—including Uber’s—pack one or more lidar sensors. But each lidar device costs from several thousand, to several tens of thousands of dollars. Urtasun has shown that in some cases vehicles can obtain similar 3-D data about the world from ordinary cameras, which are much cheaper.
“If you want to build a reliable self-driving car right now we should be using all possible sensors,” Urtasun says. “Longer term the question is how can we build a fleet of self-driving cars that are not expensive.”
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