Traditional monitoring techniques are consolidated and reliable, but can only measure a limited set of fundamental parameters. In the last ten years, traffic picture processing has spread rapidly because of its lower impact on infrastructure and users and new fields of applications it offers, such as access control, surveillance, adaptive management of signals, estimation of poor safety conditions. The technique is still young and can be significantly developed. The existing commercial devices have limits of applications due to implemented techniques, lower accuracy and reliability, their high costs and need of power supply. The application of motion-tracking techniques to traffic film is innovative compared to the technique of virtual coils, and can significantly reduce counting and classification mistakes, and increase the number of parameters that can be measured (e.g., analysis of trajectories). Their integration with wireless communication systems is also innovative and necessary.