Licence plate reader created for Middle East

Perceptics, an American border security and traffic management company, is introducing a colour licence plate reader (LPR) system that uses the plate's colour as one of the Optical Character Recognition (OCR) variables.

Since each country or state does not necessarily use the same colours for licence plates, LPR systems are especially useful in border checkpoints, improving threat detection by quickly identifying vehicles in need of further scrutiny (by analysing their licence plates). They also expedite border crossings by allowing vehicles of no consequence to pass through quickly.

Perceptics says it is the first LPR/Automatic Number Plate Recognition manufacturer to use the licence plate's colour as a discriminator in its OCR software engine. Far from simply taking a colour picture of a licence plate, OCR software uses the licence plate's colour to refine its ability to determine the plate's origin.

Ultimately, the system allows for a high level of accuracy in identifying the state and origin of a vehicle: monochrome and colour LPR systems now support both Arabic and English character recognition, and along with the OCR engine, the new system uses stroboscopic illumination to account for the weaknesses of earlier infrared-based models. Infrared-based LPR systems are less effective as they cannot read non-reflective plates or a red plate with white letters or a white plate with red letters.

According to Tom Hayes, VP Sales & Marketing, "Our new Colour / Arabic LPR system represents a significant enhancement in Perceptics' line of security and traffic management products. It gives us a new way to customise our OCR technology to mission-critical security applications in the region."

Perceptics has more than 1,000 national border LPR lanes in continuous operation at sites throughout the world, including in the United States along the borders with Canada and Mexico.

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