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Comment by fidotron

3 days ago

That's one of the reasons lidar will prove to be a dead end for this application. It's a temporary enabling technology on the path to the simpler multiple camera based solution.

Best approach would be to use both lidar and cameras. They compliment each other

  • No, in the limit where everyone has lidar they end up stepping on each other too. Being a totally passive sensor system is a major benefit for mass deployment, on top of the cost advantages.

    Lidar is cool when you want to get a point cloud from a fixed location, or dealing with perfectly uniform surfaces (which cars don't because humans can't do this either), but beyond that there are better ways to do things.

  • “Good morning, LIDAR! You’re looking positively radiant today!”

    “Why, thank you, Camera! You are doing a wonderful job of seeing everything in your FOV!”

    “Ahh, you are very flattering, LIDAR! It’s an endearing quality in you, for sure!”

    LIDAR: blushes

Camera's can't see in the dark. There is no perfect sensor. Waymo relies multiple sensor modalities: Cameras, Lidar, ultrasonics, radar, gps, inertial measurement units.

  • Cars don't drive in the dark. Roads are usually lit. And every car has its own lights for seeing where you are driving.

    • > Roads are usually lit

      Not always. Definitely not all freeways.

      > And every car has its own lights for seeing where you are driving

      Not always far enough. Especially at freeway speeds on unlit freeways.

      6 replies →

    • Interstate highways and local roads are generally unlit outside of urban areas. But in fairness, Waymos don't operate in those places anyway.