How does Automatic Number Plate Recognition Work?

by Shweta Chauhan Vehant Technologies

Automatic Number Plate Recognition or ANPR is a very precise technology to recognize number plates by capturing images. It is an effective deterrent against regional, local and national crimes and is widely used at parking management. There are different ways this technology can be used, i.e. from ticket fraud to security purposes.

How does ANPR Work?

This technology consists of a lot of image manipulation algorithms to normalize, identify, and enhance the image of number plates and OCR extracts the numbers and letters on number plates. Hence, the authorities end up with a range of metadata with the decoded text of the number plate. The software works flawlessly to identify number plates. It has seven major algorithms to identify the number plate out of the whole picture. The plate is oriented, localized, cropped and adjusted with contrast and brightness before converting each picture into characters. The optical character recognition scans the positions and characters.

However, the software should be able to ensure full identification. For making this happen, file resolution should be considered. Poor lighting, motion blur and low contrast, shadows or reflection can affect the quality. Sometimes, the plate is covered by two bars.  Though the software can fix some of these issues itself, it also depends on the hardware part to fix those problems. Raising the height of the camera may help avoid the problems a bit. It can increase other issues like making adjustments for the increased skew.

With the help of Vehicle Scan automated number plate system, you can rest assured with a really high accuracy rate and it brings more comprehensive detection. It works with several manual checks to complete the procedure.

Benefits of ANPR

It can be used for a lot of applications like managing ticket-less parking fee, parking security and automation, vehicle location tracking, parking access automation, lost ticket fraud, car theft prevention, changing ticket fraud, and automated payment.  For all of these uses of this technology in car parks, visitors can enjoy efficient and secure service. It offers better return on investment as a lot of installations are fitted easily.

Round-the-clock monitoring

These cameras keep track of everyone gathering around. You can also deliver the footage to the police if something wrong happens. It adds another layer of security to your premises.

Helpful in investigations

As discussed, this technology really helps in criminal cases. It provides important details for investigation and serves as evidence. It captures the records that can serve as sources of details in crime scenes. It provides pictures to detect wherever the suspected vehicle has traveled. 

All in all, ANPR is a carefully managed and well-managed technology which plays a vital role in different business opportunities. Its data-driven technique is helpful in operational learning and significant revenue growth for businesses. In addition, it also helps law enforcements to deter crimes. 

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Created on Sep 23rd 2020 23:33. Viewed 334 times.

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