Large area traffic monitoring with high spatial and temporal resolution is a challenge that cannot be served by today available static infrastructure. Therefore, we present an automatic near real-time traffic monitoring approach using data of an airborne digital camera system with a frame rate of up to 3 fps.
By performing direct georeferencing on the obtained aerial images with the use of GPS/IMU data we are able to conduct near real-time traffic data extraction. The traffic processor consists mainly of three steps which are road extraction supported by a priori knowledge of road axes obtained from a road database, vehicle detection by edge extraction, and vehicle tracking based on normalized cross correlation.
Traffic data is obtained with a correctness of up to 79% at a completeness of 68%.
With this system we are able to perform area-wide traffic monitoring with high actuality independent from any stationed infrastructure which makes the system well suited for deployments on demand in case of disasters and mass events.
Towards automatic near real-time traffic monitoring with an airborne wide angle camera system
Eur. Transp. Res. Rev.
European Transport Research Review ; 1 , 1 ; 11-21
2009-03-01
11 pages
Article (Journal)
Electronic Resource
English
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