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I get that the system is designed to follow the white line, and that in this nightmarish freeway design, the white line leads straight into the divider. But I
by downandout 9y ago
I get that the system is designed to follow the white line, and that in this nightmarish freeway design, the white line leads straight into the divider. But I thought that the whole point of LIDAR/whatever Tesla uses for object detection was to be able to detect upcoming objects. This seems to have been a problem in the Uber pedestrian crash as well - while it was clear from that video that a human driver probably couldn’t have seen the woman, a LIDAR equipped vehicle should have easily detected that she was there and avoided her (and that Uber vehicle had full LIDAR I believe).
So what is going on here? I’m not a radar expert. Is there some fundamental flaw with this technology that is preventing it from “seeing” all objects under all circumstances? Or does the problem arise from faulty driving logic...perhaps the object detection system reports the object, and for whatever reason the system interpreting that data ignores it?
- e98cuenc 9y agoTesla does not use lidar, only regular cameras.
- Gustomaximus 9y agoTesla used to use radar and camera combo. Has this changed? https://www.tesla.com/en_AU/blog/upgrading-autopilot-seeing-world-radar https://www.tesla.com/en_AU/blog/upgrading-autopilot-seeing-...
- deleted 9y ago[deleted]
- alkonaut 9y agoAny car with distance sensing cruise control or collision avoidance at least has some kind of forward looking radar tech, right? So it should at least be able to panic-break when noticing the mistake? It looked like the car had gone full speed into the barrier.
- simion314 9y agoTesla has this radar tech but they get some confusing data sometimes so they decided to put code to ignore some of the detections https://www.tesla.com/blog/upgrading-autopilot-seeing-world-radar https://www.tesla.com/blog/upgrading-autopilot-seeing-world-...
- improbable22 9y agoIt has radar too, I think. But this seems like the hardest thing for radar to see. Moving cars are easy to distinguish from the ground because they have a different doppler shift, but a stationary object does not.
- simion314 9y agoNo, Tesla mentioned in a blog posts that the system gets confused by many static objects like the things above the road, so they have some code to ignore them. They detect the objects but have issues identifying them https://www.tesla.com/blog/upgrading-autopilot-seeing-world-radar https://www.tesla.com/blog/upgrading-autopilot-seeing-world-...
- improbable22 9y agoBy no you mean yes? The point is that sudden braking of the car in front is easy to detect on radar, but distinguishing static objects which you must avoid from the many which you need not (signs, trees, cat's eyes, gravel) is very difficult.
- simion314 9y agoSorry if I was confusing, Tesla hardware seems to detect the static objects(like cans on the road) but they put software to filter some objects out, I hope we will get some logs of the crash (can people pull the logs from their Teslas or are DRMed?) If we had the logs we would know if the car ignored the object or the hardware it is just blind for some objects.
- pen2l 9y agoTesla cars don’t have LIDAR, Google’s waymo does. You’ll generally be able to tell if the car has lidar because you can’t quite miss it, it’ll be that big dome-like object on the car.
- downandout 9y agoRight, which is why I used the “/whatever Tesla uses” in my comment (I should have just said object detection technology instead of LIDAR). I believe Tesla is using a combination radar and cameras and they believe this is as good as LIDAR. Redgardles, I believe that Uber actually uses full LIDAR and that crash still happened. So the question still stands. Are all of these object detection technologies fatally flawed, or is it the software that is interpreting this data that is to blame?