Fig 1.
The flow chart of the system.
Fig 2.
The background update result.
Fig 3.
Frame difference function (FDF) of different orders.
Fig 4.
Virtual loops and the detection line.
Fig 5.
The sixth-order FDF with respect to frame sequence.
Fig 6.
A special case in detection line.
Table 1.
Comparison with existing models.
Table 2.
Results of vehicle counting.
Table 3.
Results of different scenarios.
Table 4.
Time performance of major algorithms computed in 1000 frames.