Video-based Intelligent Traffic Monitoring System Technology

Video Surveillance is one of the important parts of Intelligent Transportation System(ITS). Nowadays, Popular Computers(PC) are often used as central control unit in image processing in most Video Surveillance systems, however, many serious problems such as instability and low processing speed are existed in the those systems. In order to deal with those problems above, a video surveillance scheme based on DSPs was presented, which used high performance DSPs to replace PC as central control unit. Not only did we realize the hardware circuits of the system, but also we developed it's software. Furthermore, three essential methods, for instance the data transfer method by Extend Direct Memory Access(EDMA), buffer management method by Three Buffer Strategy and optimized data acquire method had been discussed.Based on the experiences of our teaching and research room in intelligent traffic monitoring, a real-time motion detection algorithm is used in our hardware system to detect multiple traffic parameters such as the number of the vehicles and the average speed and so on. Experiment results show that the performance of the system is satisfied. Finally, the potential application fields of the system are proposed.