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Which of the above would solve this problem?
by LeoPanthera 5y ago
Which of the above would solve this problem?
- mtalantikite 5y agoI'm not an expert, but I'm guessing Tesla's version of lidar wouldn't detect the moon. It's probably a bit out of range.
- rcMgD2BwE72F 5y agoAnd when the moon shows up next to a pole, a bridge or any high up structure, the car comes to a stop because it "sensed" something. You must solve vision anyway, so why use a crutch?
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- gerash 5y agoLidar could make this false prediction less likely. That said, the computer vision is still far from human level. It lacks a common sense around how the world works.
- deleted 5y ago[deleted]
- cogman10 5y agoLIDAR. You'd be able to tell there's no object anywhere near the car and disregard the light.
- rcMgD2BwE72F 5y agoUnless it's hanging from a cable https://www.masterfile.com/image/en/700-08743685 https://www.masterfile.com/image/en/700-08743685. But then, it could be a streetlight so only vision can solve this problem https://www.123rf.com/photo_2753272_hanging-street-lamp.html https://www.123rf.com/photo_2753272_hanging-street-lamp.html
- cogman10 5y agoYou need vision to determine it is or isn't a traffic light. Lidar would be able to tell you if the object should even be evaluated. A light hanging from a cable would still get a lidar ping back. The moon would be a void with no lidar ping.
- rcMgD2BwE72F 5y agoSo LIDAR says there's something, and maybe the car should stop. Maybe is not acceptable (and blind in the rain/fog), so you must rely on vision to make the decision – which is why Tesla goes straight to the heart of the problem. They haven't solved it yet, obviously, but neither has Waymo or anyone else. Tesla is probably collecting more images of 'moon or traffic light?' images than the rest of the industry combined already.
- adolph 5y agohttps://youtu.be/NSDTZQdo6H8?t=391 https://youtu.be/NSDTZQdo6H8?t=391 In the above video Andrej Karpathy claims that LIDAR required previously compiled maps, the creation of which is not scalable. Do you disagree with that point of view?
- cogman10 5y agoAndrej's claim isn't that you need those maps, it's that using those maps is how today's LIDAR approach work. Without the maps, you'd need to rely pretty heavily on vision to do the right thing. What LIDAR gives you is a very accurate point cloud to work from. You can get a point cloud from vision (and indeed, that's what telsa is doing) but it won't be near as accurate as LIDAR is by default.
- barbazoo 5y agoRadar and Lidar perhaps, being based on reflection of radio waves/laser off surfaces.
- cogman10 5y agoRadar isn't sensitive enough. LIDAR is.
- rcMgD2BwE72F 5y agoLIDAR is so sensitive it can't reliably detect traffic lights in the rains. So you must rely on vision anyway (which is Tesla's).
- barbazoo 5y agoI suspect both would have been able to tell that the moon isn't a traffic light.
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- jillesvangurp 5y agoProbably just a bit more training data and cameras will do just fine. It's a funny edge case; nothing more. I'd be surprised if it will remain a problem.