Low-Quality Lidar Will Keep Self-Driving Cars in the Slow Lane

MIT Technology Review

The race to build mass-market autonomous cars is creating big demand for laser sensors that help vehicles map their surroundings.

But cheaper versions of the hardware currently used in experimental self-driving vehicles may not deliver the quality of data required for driving at highway speeds.

Most driverless cars make use of lidar sensors, which bounce laser beams off nearby objects to create 3-D maps of their surroundings. Lidar can provide better-quality data than radar and is superior to optical cameras because it is unaffected by variations in ambient light.

You’ve probably seen the best-known example of a lidar sensor, produced by market leader Velodyne. It looks like a spinning coffee can perched atop cars developed by the likes of Waymo and Uber.

But not all lidar sensors are created equal. Velodyne, for example, has a range of offerings. Its high-end model is an $80,000 behemoth called HDL-64E – this is the one that looks a lot like a coffee can. It spits 64 laser beams, one atop the other.

To read more of the original article go to MIT Technology Review.

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