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How is the accuracy of sign recognition on the LED signs stating the current speed limit? My experience is that it is not so good, maybe other cars are better a
by rypskar 7y ago
How is the accuracy of sign recognition on the LED signs stating the current speed limit? My experience is that it is not so good, maybe other cars are better at reading LED signs.
For the car to react according to how other cars drive, you need to have other cars on the road at the same time. I have a narrow gravel road where the limit is 30km/h but safe driving is between 10 and 20, but my car tell the limit is 50km/h. It can be weeks without me seeing other cars on that road at the same time as me. Some mornings during the winter I can drive because I know where the road is, not because all of it is visible. Good luck having an autopilot doing that
- joshvm 7y agoWell, quite. But again this is all supplementary information. The car should have a basic idea of the speed limit from a database and it should adjust as appropriate. Similarly the car should be able to identify road surface conditions and also how much power it's needing to put in to achieve a set speed. If it's identified that traction is being lost over gravel, then it should reduce power. Equally the autopilot should consider visibility. There are plenty of roads that are national speed limit and you'd be insane to drive at 60 on them due to blind or extremely tight corners. But with LEDs this seems like massively over-engineering the problem. Why use computer vision when you can potentially broker a deal with the highways agency to get live speed limits on a particular stretch of highway?