4 ms·

(6) and (7) are not assumptions - the angle you are looking from doesn't make a difference, the time taken between each wheel crossing the same part of the imag

• uuyi 5y ago
  What happens if the plate is incorrectly read? I have had this with my old vehicle leading to being fined for entering a car park but not leaving it. I disagree with points 6 and 7 entirely. You can observe wheelbase compression standing on a tight bend with your eyes which are fairly low precision. Also throw an extreme scenario on the table. If you're travelling at 70mph, that is 31m/s or 1m image resolution for a 30fps video. If your wheelbase is 3m that's a resolution of three frames to pass which is well below any threshold where a credible measurement is possible as you convert from discrete to continuous time. Of course that brings in the problem that lower speed resolution is probably better so I should probably be driving around at 70mph in a 30mph in my 6x6 Land Rover 130 (sorry couldn't resist that). I think there are too many assumptions to make a reliable measurement within a tolerance for the purpose described. The existing measurement devices have to be calibrated and must be operated within certain constraints to make an accurate measurement otherwise the information is inadmissible. Your app doesn't contain 1/10th of the assurance or competency that would be required. All it does is allow really annoying people to annoy people.
  • deleted 5y ago
    [deleted]