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To: chowder who wrote (279)	5/3/2021 8:44:47 PM
From: Harper	1 Recommendation Recommended By Mister D Respond to of 1103

No one has ever suggested using lidar alone. Tesla uses front-facing radar and 12-16 ultrasonic sensors, because cameras were not enough. Lidar is probably indispensable for autonomous vehicles. All companies talking about lidar use them in conjunction with cameras and radar. Cameras require more complex algorithms for computers to identify the colors they see, whereas lidar is fairly straightforward in identifying objects and can measure exact distances. A computer doesn't "see" anything on a camera unless it's programmed to identify something. Lidar can see things better than eyes, especially when there is glare that can block the human eye and camera vision. When Musk first said he didn't want lidar it was prohibitively expensive. Now, costs have dropped and the tech is better, too. Xpeng's newest vehicle, designed for eventual autonomous driving, uses cameras, radar, and lidar. Teslas use cameras, radar, and ultrasonic sensors. Tesla is working on more advanced radars as well that will simulate some of what lidar does. Musk knows cameras alone are insufficient.