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I think the overlooked part is "seamlessly integrate". Signal to noise ratio is important, and it is not trivial to "just add sensors". I think the analogy of "
by fastball 4y ago
I think the overlooked part is "seamlessly integrate". Signal to noise ratio is important, and it is not trivial to "just add sensors". I think the analogy of "too many cooks in the kitchen" applies here.
- surfpel 4y agoIndeed. Ultimately humans do it remarkably well with just vision, too, when they’re not intoxicated, distracted, or falling asleep.
- gonehome 4y agoYeah, adding sensors can sometimes make things worse.
- xnx 4y agoExample? There are plenty of examples where mistakes that Tesla's cameras make (being blinded by the sun, having trouble with emergency vehicles) are no problem for systems with more sensors.
- gonehome 4y agoThis talk was worth watching (any Karpathy or Carmack talk is imo): https://www.youtube.com/watch?v=g6bOwQdCJrc https://www.youtube.com/watch?v=g6bOwQdCJrc Specifically this is the relevant part: https://youtu.be/g6bOwQdCJrc?t=1370 https://youtu.be/g6bOwQdCJrc?t=1370 They removed radar because it was making things worse.
- xnx 4y agoI interpreted that statement by Karpathy as an accidental admission of Tesla's own limitations and not of the approach itself. (Note: I'm upvoting all your comments because they're very reasonable and supported.)
- ra7 4y agoI think the keyword you’re looking for is ‘sensor fusion’, which apparently is only a problem for Tesla because the others have figured it out years ago. Perhaps there is a talent gap at Tesla or an unwillingness to invest in it. They generally avoid having to do anything that’s hard and try to look for shortcuts. Case in point: the whole radar removal and reintroduction flip flop. It seems like they don’t believe themselves that cameras are sufficient.
- fastball 4y agoI don't think anyone has "figured it out" if they still don't have unconstrained driverless cars.
- ra7 4y agoThat’s tangential to your original point of discussion which was sensor integration. Sensor fusion is absolutely a solved problem. Autonomous driving requires more than just sensor fusion though.
- fastball 4y agoIt's not tangential at all. If the purpose of these sensors is for autonomous driving, and "solving" sensor fusion hasn't gotten you there, how can you possibly say it is a solved problem? Sensor fusion (in this context) is not solved until you are using fused sensors for autonomous driving.
- ra7 4y agoWhy are you equating sensor fusion with solving the entirety of autonomous driving? That’s disingenuous. You understand sub problems can be solved, right? Sensor fusion is just combining different sensor inputs so you have high confidence in your object detection and you’re not “confused with disagreements” as Tesla likes to say. Self driving involves solving prediction and planning problems too, not just sensor fusion.