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While I agree with you on mandating it, a LIDAR "only" gives you a 3D point cloud. Great for detecting if an object is in your way - but it cannot read a stop
by gruturo 6y ago
While I agree with you on mandating it, a LIDAR "only" gives you a 3D point cloud.
Great for detecting if an object is in your way - but it cannot read a stop sign, you still need a camera system for that - so they still have to harden it against this hack (and who knows how many to come).
- tshaddox 6y agoWouldn't that "hack" just be as easy as sticking an actual stop sign somewhere it's not supposed to be, or removing a real stop sign? That would obviously fool a human driver just as much, and it has actually happened, and killed people.
- bonestamp2 6y ago> so they still have to harden it against this hack True, but LIDAR should make that detection more robust. For example, if a stop sign is on the same plane as the object that surrounds it, that's a strong signal that it is not a real stop sign but rather a projected or displayed one. That's much harder to detect with computer vision alone, especially if they're dealing with hackers who can test it with a real car and continually iterate on it to find different ways to trick it.
- nitrogen 6y agoFor example, if a stop sign is on the same plane as the object that surrounds it, that's a strong signal that it is not a real stop sign but rather a projected or displayed one. It's conceivable that in denser or older areas, signs are sometimes placed on structures because there isn't room for a pole.
- bonestamp2 6y agoAgreed. I didn't say it's definite, I said it's a strong signal. Even strong signals need to be weighed against other available data. Apple Maps shows stop signs and traffic lights on the map. A database like that would be another strong signal, but also not always accurate.