DVR Security Forum

Full Version: Why LPR and what is LPR?
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1.Why LPR?

If your business is involved with surveillance, counter-terrorism, access control and congestion charging markets… If your customer base are police forces, local authorities, universities, gated communities and government bodies.
Growth potential is significant due to rise in Security and Traffic initiatives.
(In the US alone, a vehicle is stolen once every 26 seconds.)

Government & police
Road Monitoring
Stolen car search
Speed violation process
Traffic flow management
Law Enforcement

If your business is involved with surveillance, safety prevention, access control and marketing consultancy markets… If your customer base are private enterprise, recreational & entertainment facility and car related business..

Growth potential is significant due to rise in Security and Management efficiency initiatives.


Fleet Management, Dump, Car Rental
Entrance control, Time record, etc.
Parking Lot/ Show ground/ Shopping Mall
In/out control, Ticketing, Traffic count, Visitor analysis
Petrol station, Drive-In restaurant
Visitor count, avoid theft
Company parking lot
Entrance control, Time record

2.What is LPR?

It is a kind of OCR (optical character recognition)

Optical Character Recognition (OCR) is the method used by a computer to convert scanned in pages of text into electronic text documents. (definition at web)

License Plate Recognition is the method used by a computer to convert digital images of vehicle license plates into electronic text."

ANN (artificial neural network)

The artificial neural network consists of many no-linear processing units (neuron) and numerous links between those units. Parallel and separate processing method enables this network to deal with multitudinous data simultaneously.

3.Recognition Process

Locate/Identify the locate of the license plate in the image
Extract the image/extract the relevant area
Apply geometric distortion compensation if necessary
Isolate the individual character
Recognize/Read
Reference URL's