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(Automatic License Plate Recognition) Also called "automatic number plate recognition" (ANPR), it is a law enforcement system that optically scans vehicle license plates. Using fixed-position cameras on highways or mobile cameras in patrol cars, the system identifies the plate and matches it against a database of stolen and uninsured vehicles, as well as vehicles registered to drivers with suspended licenses. Equipped with an ALPR, a police official can drive through a parking lot and process the plate number of every parked car. Some systems even photograph the driver.

From Fixed to Mobile
Developed in Europe in the late 1970s, the first systems used fixed cameras at highway intersections. Subsequent systems migrated to mobile use with faster cameras and better recognition algorithms. In addition, laptop computers became more powerful over the years, enabling more economical and effective mobile use.

Toll Collection and Speeding
ALPR is also used with toll collection systems such as E-ZPass to identify vehicles that go through a toll booth without paying and without an RFID tag. It is also used in combination with highway speed detection systems to identify violators and send them speeding tickets.

People Are Always Creative
Drivers have tried to circumvent these systems by obscuring theletters and digits in some manner or by making their plates more reflective with a plastic cover or spray. However, some countries that have used ALPRs have made modifications to the fonts on the next version of their plates to make them easier to identify at high speeds.
References in periodicals archive ?
Adding this powerful ALPR capability to the Toughbook Arbitrator provides even greater justification to switch to a digital solution.
We need sound, practical solutions that enable law enforcement to leverage ALPR to protect and to serve.
ALPRs are unregulated in many of the states where they are in use, although New Hampshire has banned them and Maine requires collected information to be purged in 21 days unless it's needed for an ongoing investigation.
If ALPR is reading license plates, officers can concentrate on other tasks, which helps us protect the public," said Sgt.
To find out more about this powerful new ALPR security system and how INEX/ZAMIR can help your organization, please visit www.
Implementation of an ALPR network is a critical piece of an integrated community security system.
The organization favors laws limiting how long information collected by ALPR systems can be saved and how it can be used.
Corbett (2008:8-9) investigates ALPR as part of a broader discussion of traffic surveillance in the United Kingdom including speed cameras, electronic tagging of vehicles to tax drivers for road usage, and satellite technologies to restrict vehicle speeds to the posted limits.
SUPPORTING RESOURCES ALPR solutions website MVX1000 website Next Generation Public Safety IACP 2010 website
Seamless command, control and administration from the C-CURE 9000 console gives the INEX/ZAMIR ALPR system the ability to function as a card reader, creating the option to use both systems in tandem for granting vehicle access.
With dart, its new board level camera series, Basler meets the customers demand for a basic yet efficient camera for simpler traffic applications such as access control or in-vehicle ALPR solutions.
Gingrich for understanding the significant importance of ALPR in both the private sector and Homeland Security and having the foresight to speak openly about its use at public events and to legislators.