Driven by the IoT boom, cars are connected like never before. The connected car panel at CES Asia last week brought together prominent figures to butt heads over tone of the most interesting topics in the field: autonomous driving.

High-definition mapping is the core of tomorrow’s self-driving cars. While regular maps are compiled for humans who can make their own judgments under certain conditions, HD maps are designed for machines, said Zhai Yao, a head of product development at Continental Automotive’s smart transportation unit.

“HD maps provide much more detailed information on road conditions which mainly fall into two categories: lane attributes, like width of roads, road curves, and object info, such as road signs and sentry box,” added Jing Muhan, the Vice President of mapping company NavInfo. It’s also about precision. A regular map can position a car within a meter, while HD maps can do it to within as little as ten centimeters.

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Emma Lee

Emma Lee is Shanghai-based tech writer, covering startups and tech happenings in China and Asia in general. We are looking for stories related to tech and China. Reach her at lixin@technode.com.