It should be noted that there are limitations of the proposed
method to be concerned with. Firstly, the vehicles appeared in
the video are assumed to be clear and not occluded inside the
virtual detection zone and secondly, the width of the virtual
detection zone should be large enough for counting the
vehicles. Furthermore, there are additional vehicles’ features to
be taking into account for vehicle detection in various setups.
These issues will be the major concerns in the future work.