Technology background of
License Plate Recognition

License Plate Recognition
Systems

License Plate Recognition
Software

License Plate Recognition
Cameras & other hardware

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CARMEN Freeflow
License Plate Recognition software

The CARMEN® Freeflow License Plate Recognition software meets all the requirements a license plate recognition system may need to satisfy. It is capable of the automatic detection, identification and recognition of the registration number of any vehicle. CARMEN® helps system integrators and solution providers to meet the challenges of developing effective ITS, AVI, security or data management products and solutions by making it easier to incorporate vehicle license plate number based information into their computing environment.

CARMEN Freeflow Number Plate Recognition Engine

CARMEN® Freeflow can be used in ALL applications, where automatic recognition of vehicle license plates is needed. It is fast (can even execute continuous license plate reading even at vehicle speeds of up to 250km/h), highly accurate (with close to 100% recognition accuracy) and provides extremely robust, fail-safe, stable performance under various conditions.

There are thousands systems powered by the CARMEN® License Plate Recognition Engine under stable operation in more than 150 countries.

Due to its outstanding technology, its high accuracy rate, the speed of image processing and its adaptability, CARMEN® FreeFlow is stated by the customers to be the best of its class.

CARMEN® FreeFlow provides the core license plate recognition technology in a form so that it can be easily integrated into computer systems. It is very flexible: the CARMEN® SDK provides a comprehensive functions library to meet special customer requirements. CARMEN® FreeFlow is very easy to be integrated even into complex intelligent applications.

Technical specifications of CARMEN® FreeFlow engine
Supported Operating Systems · Windows 7, Vista (32bit only), XP, 2003, 2000
· Linux
Programming Languages
under Windows		 · Visual C/C++
· Visual Basic 6.0
· Borland Delphi
· Visual Basic .NET
· C#
· Java
Programming Languages
under Linux		 · C/C++
Software Development Kit · Drivers, sample source codes
· DLLs, ActiveX components, OCX files
Type of Plates · Recognition is country and font independent: any Latin, Arabic, Chinese, korean and Cyrillic characters can be recognized
· State/country region recognition (optional)
Image Input · Still image from memory or file (BMP,JPEG,JPEG2000)
· Live analogue video input (PAL or NTSC)
Trigger · Trigger is not mandatory but recommended when recognizing from live video
Processing time dependences · Image quality (complexity, noise level)
· Image size
· Processing power (CPU speed)
· Parameter settings
Output · Plate number in ASCII/UNICODE
· Position of plate
· Positions of characters
· Tip list for each characters
· Confidence levels for each tips
· Color of plate (optional)
· Country ID optional)
· Locating more plates on one image
Documentation · Reference manual in electronic format
System Requirements · Intel, PIII 1 GHz or higher Intel CPU (128 MB RAM)
· Free PCIe / PCI (2.1) / PC104+ slot or USB 2.0 port
Licensing · 1 licence required per CPU

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