license plate recognition system < / a > factors affecting license plate recognition rate

The license plate recognition rate of license plate recognition system is mainly determined by six factors:

1. Shielding: whether the license plate is clean or whether there are obstructions

2. Deformation: deformation and wide-angle distortion of the license plate itself

3. Angle: the license plate recognition rate is the highest when shooting in front. The more inclined the angle is, the lower the recognition accuracy is

4. Background: too complex background will reduce the recognition rate

5. Light: daytime, night, backlight, weather, yin-yang license plate and other factors will also affect the license plate recognition rate

6. Scale: the change of pixel width