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Citizen uses OpenCV to track speeders near his home
21–30 of 138 posts
Re: Citizen uses OpenCV to track speeders near his home
#22Is it allowed in the USA for an individual to film public space?
Re: Citizen uses OpenCV to track speeders near his home
#23Welcome to the age of nitpicking busybodies. Next month, he'll have a facial recognition system for dog walkers who fail to curb their dog.
'Unintentional injuries', among which car crashes are a leading type, are the most common cause of death among those ages 1-44:
http://www.cdc.gov/injury/wisqars/leadingcauses.html
Re: Citizen uses OpenCV to track speeders near his home
#24A pretty common sight around here (western europe) which seems to work pretty well are dynamic reminder signs: electronic signposts with a speed radar, which simply displays your speed in green if you're under the limit, orange if you're a bit over and blinking red if you're way over (using fairly bright led arrays so it's visible in most conditions)
Anecdotally, it seems to work pretty well, drivers do slow down when they approach the sign and don't seem to speed back up afterwards. I do not know if it's the personal reminder or the shame of showing your speeding to everybody around.
Sign've been here a while and seem to keep their effect, they don't seem to become part of the scenery and ignored over time as regular static signs are wont to do. And that applies to both car and bus drivers.
Re: Citizen uses OpenCV to track speeders near his home
#25I'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 check…
This seems like it would be harder. Would you have to lock onto the tires to catch a certain number of frames without movement?
I would thinking rolling through a stop sign (especially at an intersection that is not a 4-way stop) would be much more dangerous than going 30 in a 25.
Re: Citizen uses OpenCV to track speeders near his home
#26I wonder how the HN commentariat would feel about this if it was a government agency behind this rather than a fellow hacker...
Do you have an objection to government-run cameras enforcing a safe speed limit? In my experience, an awful lot of drivers are really, really bad at driving. Speeding, in particular. If there is no other way to ensure idiots behind the wheel stick to a safe speed, then I'm all for it. This is merely a step towards fully-automated vehicles, anyway, which will be literally incapable of breaking the speed limit.
Re: Citizen uses OpenCV to track speeders near his home
#27NB if you use a dash cam, realize that it can also be used to very precisely calculate your speed in exactly the same way. Good if you are fighting a speeding ticket you didn't deserve, bad if you get into a wreck and were speeding.
Re: Citizen uses OpenCV to track speeders near his home
#28> 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 ro…
That's ridiculous. A 35mph collision with a pedestrian would almost certainly result in a dead pedestrian. 25mph is usually survivable.[1]
A 20mph speed limit, strictly enforced would drop pedestrian fatality rates to essentially 0.[2]
1: http://humantransport.org/sidewalks/SpeedKills.htm 2: http://www.visionzeroinitiative.com/
Re: Citizen uses OpenCV to track speeders near his home
#29> 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 ro…
The guideline I was taught was FWIW, I've never been pulled when I was following those guidelines (driving in GA + SC).
Re: Citizen uses OpenCV to track speeders near his home
#30I'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 check…
There's a stop sign near my house that is often ignored and when I watch people blow through it (while obviously speeding) I wonder how much fear for letting our children wander is reinforced by behavior like that and how a lack of children playing reinforces that behavior.
As far as speeding goes, I generally stick to the limit in a residential but when I'm being tailgated I'll speed up to 30mph. I'd rather only have to worry about stopping the force of my vehicle if a child runs out in front of my car. But it rarely makes a difference, most people want to go 40-45mph and become visibly irate at anything less than that. Things like that make me happy that self driving cars are somewhere on the horizon.