Table 2. Simulation results of vehicle plate detection.

Plate type D U Detection accuracy(%)
Before 2006 30 0.95 85
30 0.98 92.5
50 0.95 87.5
50 0.98 95
After 2006 30 0.95 75
30 0.98 92.5
50 0.95 77.5
50 0.98 97.5