Camera Requirements
The cameras that are used for capturing clear ALPR-readable images have very good low light sensitivity so that they can maintain very high shutter speed to reduce motion blur while still capturing enough light to make the image clearly visible.
Those cameras also need to have a very good WDR, because they have to be able to read the front side license plates regardless of the interference from the headlights of the vehicle.
It is also important to have a high frame rate capability so that multiple images could be captures within that short moment while the vehicle is in the view of the camera. This way, there are more choices for the most ideal snapshot for the analysis.
Furthermore, it is important to decide how many concurrent lanes of traffic would one camera have to manage. Some cameras can manage 2 or even 3 lanes at the same time.
