Automatic number plate recognition (anpr)
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Automatic Number Plate Recognition (ANPR) is a highly accurate system that reads vehicle number plates using high-speed image capture and optical character recognition (OCR). It has multiple applications, including law enforcement, car park management, and traffic monitoring, providing benefits such as 24/7 operation and easy integration with other systems. ANPR aids in operational response and investigations, helping to detect stolen vehicles and manage crime-related activities.
Automatic number plate recognition (anpr)
- 1. What is ANPR Automatic Number Plate Recognition (ANPR) is a highly accurate system capable of reading vehicle number plates without human intervention through the use of high speed image capture with supporting illumination, detection of characters within the images provided, verification of the character sequences as being those from a vehicle license plate, character recognition to convert image to text; so ending up with a set of metadata that identifies an image containing a vehicle license plate and the associated decoded text of that plate.
- 2. How does it work? ANPR uses optical character recognition (OCR) on images taken by cameras. As a vehicle passes an ANPR camera, its registration number is read. The software aspect of the system runs on standard home computer hardware and can be linked to other applications or databases. It first uses a series of image manipulation techniques to detect, normalize and enhance the image of the number plate, and then optical character recognition (OCR) to extract the alphanumeric of the license plate.
- 3. • Secure and tamper proof, • 24x7 operational, • Less manpower required, • Accurate in head count, • Easy integration with access control. What are the benefits of ANPR?
- 4. Who can benefits from this system? License Plate Analyzer has a wide variety of law enforcement, monitoring and commercial applications for various environments. Possible applications include: • Car park management • Automated real-time alerts to unauthorized vehicles • Toll booths • Traffic and parking flow surveys • Site access control
- 5. ANPR is used to support the following activities: Operational Response – As a vehicle passes an ANPR camera, its registration number is read and instantly checked against database records of vehicles of interest (VOI). If the vehicle is listed as a VOI Police officers can intercept and stop a vehicle, check it for evidence and, where necessary, make arrests. Information and Intelligence – VOI that are of interest particularly for in relation to national security or have been linked to and organised crime purposes can be circulated and as they pass an ANPR camera details are recorded for information of investigation teams. Investigations – The record for all vehicles passing by a camera, including those for vehicles that are not known to be of interest at the time of the ANPR read may in appropriate circumstances be accessed for investigative purposes. The use of ANPR in this way has proved to be important in the detection of many offences, including locating stolen vehicles, tackling uninsured vehicle use and solving cases of terrorism, major and organised crime How does ANPR assist?