- With the vehicle applications gaining popularity in daily life, intelligent vehicle management becomes important in many industries.
- Hikvision ANPR (Automatic Number Plate Recognition) technology can detect and identify the vehicle’s unique license plate number and is an important component of a sophisticated vehicle management system.
- While Hikvision’s ANPR technology has been approved by many Chinese customers for its high accuracy, lack of a universal license plate format in the overseas market presented a great challenge.
- Hikvision’s ANPR technology was created to be applied globally in diverse places since it does not rely on prior information (such as plate character structure, plate color, etc.).
2. Key Technologies
- Hikvision ANPR technology is able to extract license plates from the complicated background, separate and recognize each character on the plate, and reformat the plate information.
- The technology consists of Plate Locating, Character Partitioning, and Character Recognition.
Figure 1 Plate Recognition Flow
- Hikvision ANPR technology features the most advanced machine learning algorithm and the image processing measure, and reaches extremely high accuracy.
- It has the following advantages:
- Small resource occupation;
- High recognition efficiency;
- Great capability: round-the-clock recognition and minimally affected by weather;
- Global application: supports Arabic numeric, English characters, and any other languagecharacters.
Figure 2 Hikvision ANPR Global Application Examples
- Most of the traditional ANPR technologies, which depend a lot on the license plate color and structure, theaccuracy rises and falls affected by the environment, are applied limiting by their disadvantages.
- And if there are multiple plate types in the application region, their recognition accuracy would greatly reduce.
- Hikvision’s ANPR technology, however, does not rely on specific environmental and regional conditions.
- Hikvision’s advanced algorithms can recognize multiple plate types.
- Hikvision ANPR cameras satisfy global applications with recognition accuracy higher than 95 percent.
- Versions customized for specific region can reach 98 percent accuracy or more.
- At present, Hikvision ANPR cameras have been applied in parking lots, buildings’ entrance and exist, etc. and are approved by many customers.