Purpose: 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. Methods: 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. Results: Traffic data is obtained with a correctness of up to 79% at a completeness of 68%. Conclusions: 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. © European Conference of Transport Research Institutes (ECTRI) 2008.
CITATION STYLE
Rosenbaum, D., Kurz, F., Thomas, U., Suri, S., & Reinartz, P. (2009). Towards automatic near real-time traffic monitoring with an airborne wide angle camera system. European Transport Research Review, 1(1), 11–21. https://doi.org/10.1007/s12544-008-0002-1
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