Citizen uses OpenCV to track speeders near his home
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Citizen uses OpenCV to track speeders near his home
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Re: Citizen uses OpenCV to track speeders near his home
#2I've often thought of doing the same thing. Our current and previous houses are/were on corner intersections of our neighborhood.
I'd love to see an open source implementation of this. I'd put it up to get data on speeding and see if it could be adapted to catch people running the stop sign in front of my house. I see at least 2 cars per day run it and that's just in the time I'm outside to do quick things like checking the mail.
Re: Citizen uses OpenCV to track speeders near his home
#3Paul (the Citizen) was a former professor in the CS dept at U. of Virginia.
As the story says, the motivation was that a kid was hit by a car on that street in October.
Re: Citizen uses OpenCV to track speeders near his home
#4Welcome to the age of nitpicking busybodies.
Next month, he'll have a facial recognition system for dog walkers who fail to curb their dog.
Re: Citizen uses OpenCV to track speeders near his home
#5I think an even better application of this technology would be to catch people who aren't stopping at signs/lights, or not yielding at merges. Radar-equipped signs can handle the speeding case fairly well, but are useless in these other - and often more dangerous - cases.
Re: Citizen uses OpenCV to track speeders near his home
#6> At 4:27 p.m. last Wednesday, the system caught a Route 11 city bus doing 34 mph.
Which isn't even fast enough to get a ticket from local police.
In my state (which is not Virginia, and it will vary everywhere), local police are prohibited from using radar and need to use an actual stopwatch to track your speed. Obviously very error prone, and they're supposed to basically give you 10 mph leeway - meaning on that road you basically couldn't get a ticket for going under 36 mph.
Also it doesn't say what they determine speeding to be. Based on his description the vehicle should be wholly between both markers for 40 frames at exactly 25 mph. Are cars that touch the mark on frame 39/40 considered speeders since they're going ~25.025 mph? There is a reason many states do not start issuing tickets until 5, 6, 9, 10+ mph over the posted limit.
Re: Citizen uses OpenCV to track speeders near his home
#7I wonder how the HN commentariat would feel about this if it was a government agency behind this rather than a fellow hacker...
Re: Citizen uses OpenCV to track speeders near his home
#8I think an even better application of this technology would be to catch people who aren't stopping at signs/lights, or not yielding at merges. Radar-equipped signs can handle the speeding case fairly well, but are useless in these other - and often more dangerous - cases.
Red light cameras increase rear-end collisions as well as injury because people would rather lock up their brakes one car length before the intersection than get a ticket.
I haven't seen any information on the effect of cameras at merging sites, though.
Re: Citizen uses OpenCV to track speeders near his home
#9Welcome to the age of nitpicking busybodies. Next month, he'll have a facial recognition system for dog walkers who fail to curb their dog.
This would be awesome to catch people not cleaning up after their dog. Great idea.
Re: Citizen uses OpenCV to track speeders near his home
#10I wonder how the HN commentariat would feel about this if it was a government agency behind this rather than a fellow hacker...
It's one thing to just get the data and make an argument (in this case, "slow down") - it's an entirely separate thing to do that and start issuing citations or impounding vehicles.