License plate recognition camera brings convenience for wisdom parking areas

2022-09-18 00:00:00

License plate recognition system of parking lot is at present are all considered to be more convenient management and traffic faster a car park management system, because it has the advantages of high recognition rate and fast traffic, get the favour of a lot of users, with constantly improving technology, the use of the license plate recognition system for parking lot greatly overcome the interference of environmental factors.Below is for us the intelligent parking plays an important role in the development process of license plate recognition cameras.

license plate recognition, in short, which is based on a variety of image processing algorithm, and analyze the front camera to vehicle image, and then extract such as license plate number (Chinese and English characters and Numbers), license plate color, models, manufacturers, even the vehicle information such as color, achieve accurate lock vehicles & other;Identity & throughout;And associated with the corresponding vehicle road information, finally realizes the intelligent automatic management of the road of a technology.The core of the license plate recognition cameras including license plate localization algorithm, license plate character segmentation algorithm and optical character recognition algorithm, etc.

the license plate recognition camera principle includes the following steps:

1. Vehicle detection: license plate recognition cameras can use buried coil detection, infrared detection and radar detection technology, video detection through a variety of ways such as cognitive vehicles, capture and triggers the image collection.

2. Image acquisition: license plate recognition camera through hd video capture host for real-time traffic, continuous record and gathering.

3. Pretreatment: noise filtering, automatic white balance, automatic exposure and gamma correction, edge enhancement, contrast adjustment, etc.

4. License plate location: after image preprocessing on gray image scanning, the license plate area is determined.

5. Character segmentation: locate the license plate area in the image, through the gray, binarization processing, such as precise positioning character area, then according to the character size characteristics for character segmentation.

6. Character recognition: to zoom after the character segmentation, feature extraction, with the standard of character database template matching character expression.

7. Results output: license plate recognition cameras will result in text format output.


the license plate recognition camera as the core equipment in the parking lot system, in order to be closer to people’s life demand, bring people a more convenient life, the evolution of the future must be stop and life in the integration of systems, the networking and intelligent function, integrating the function such as parking, consumption, access control of intelligent model is one of the most function of meet the demand of people’s life.