9 Important Facts about the Automatic Number Plate Recognition

Have you ever noticed any camera mounted on the top of the police cars or of any poles? In this article, we would make you acquaintance with the systems that can identify and track the number plates of your vehicle while you drive. Interestingly, the systems find applications in section control, border crossings, and automobile repossessions work. The products are widely used across security & surveillance, telecom & networks, traffic & transportation, imaging & video, banking and embedded verticals. Now let us throw light on some of the important facts about these intelligent transport systems.

1.     In 1976, a traffic intelligent system was first invented at the police scientific development branch in U.K for analysis and readings of the moving vehicles.

2.    Automatic Number Plate Recognition (ANPR) is called by various names like Automatic License Plate Recognition, Car Plate Recognition, License Plate Recognition, Lecture Automatique de Plaques d’ Immatriculation and Automatic Vehicle  Identification to name a few.

3.      In most of the countries like Dubai, police in their patrolling cars make use of ANPR to keep track of the vehicles in both the sides of the car.

4.     It detects and reads license plates of the vehicles automatically 24x7 in real time. 

5.     In order to identify the license plate of a vehicle, the software requires six primary algorithms, namely plate localization, plate orientation & sizing, normalization, character segmentation, optical character recognition and syntactical/geometrical analysis.

6.  Like the two faces of the coin, there are lots of controversies regarding the systems. As per an article published in 2008 in Parking Trend International topic, manufacturers of the products claim that their systems report 98% accuracy, whereas only 90% to 94% users nodded in favor of the accuracy factor, even if the engine remains under perfect conditions.

7.    Today Automatic License Plate Recognition systems (ALPR) are also facilitated in mobile phones.

8.   Some of the hindrances in the ANPR’s operations are poor image resolution, blurry images, poor lighting and low contrast owing to reflection, shadows or over exposure and circumvention techniques to name a few.

9.     The ALPR systems make use of road rule enforcement, closed circuit television cameras and other image capturing devices, designed specifically for the purpose.

Therefore, if you need to analyze the traffic or detect the license plate of both the moving and parked vehicles, go for these systems. To suit your specific requirements, the products are also get tailor made by companies like KritiKal, one of the leading Embedded System Design and Real Time Computer Vision & Imaging Solutions companies of the world. 

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