How License Plate Recognition (LPR) Works

License plate recognition involves capturing photographic images or video of license plates, which are processed by a series of algorithms that convert the captured images into text.

​The main challenge of an LPR system is accurately recognising the characters that make up the licence and making sure character recognition is consistently accurate.

Of utmost importance in an LPR controlled car park is the length of time taken to raise the barrier arm. Accurately processing a license plate and then elevating the barrier arm in the shortest possible time is what customers and carpark owners /operators want.

EyeGate’s LPR in car park management

EyeGate’s LPR system uses illumination and a camera to take the image of the front or rear of the vehicle, then the image-processing software analyses the images and extracts the plate information. EyeGate patent pending technology achieves 99.8% LPR accuracy and barrier arm activation happens in sub 4 seconds.

Data used by the access-control system to open a gate for entry and exit of the authorised vehicle is also utilised for payment calculations. The LPR data is also used for a range of other customer services and market intelligence.

Paper ticket based parking management

LPR based parking management