Toll Roads & E-pass

About a year back, they changed the system of E-pass scans in Florida. The technology is unbeleivable. Vehicles with E-pass are no more required to slow down near toll booths. The scan is such effective that it identifies your device(transponder) and also takes pictures of vehicles which do not pay( or low on battery whatever)....All this happens ........when you drive through the tolls non-stop at 70+mph. Identifying the device, though the target is moving at such a high speed, is something acceptable, imagining a frequency matching technique. But I am still trying to figure out, how they manage to take pictures of the car tag, and how many pixels and bit rate would that be ??

For people who live in places like california...what you call freeway is called Toll road in FL. People in California pay freeways in form of state taxes, inspite of whether one uses them or not. Unlike CA, FL has tolls similar to that in India, where you pay only when you use it.