Site is in German, but with the software there it appears you can measure the speed of vehicles with a web cam (We didn’t test this out, please be careful, etc..) – Link.
8 thoughts on “Detern – Geschwindigkeitsmessung per WebCam (measure speed by web cam?)”
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I was astonished reading german in the RSS Feed. ^^
And your right, translated it’s mesure speed by a webcam.
This is an interesting subject. My local university & state dept of trans have done work on this too: Traffic Video: The Use of Uncalibrated CCTV Cameras as Quantitative Speed Sensors. No published software, but some articles.
The instructions:
Recommended camera settings:
1. automatic brightness levels.
2. saturation to 0 (no color)
3. the camera must be able to do at least 25 fps.
4. only 320×240 resolution required.
5. automatically stops measuring after 3 seconds
6. Cars require a travel distance of at least 5m to measure, longer vehicles such as trucks and buses require a minimum travel distance of 10m to measure.
7. Camera must be perpendicular to the road.
8. a vehicle traveling 50km/h will require 14 ms to travel 10m.
9. depending on computer speed, the measure points will be polled about 100 to 200 times per second.
You can also install SpeedCam 2012 from http://www.raserabwehr.de. It allows you to measure vehicle speed with your webcam and also make what they call “radar photos”.