License plate recognition method, device and system, and storage medium

A technology of license plate recognition and license plate, which is applied in the field of image recognition, can solve problems such as the negative impact on the accuracy of license plate recognition, achieve the effect of improving the accuracy of license plate recognition, reducing the requirements for image quality, and reducing heavy dependence

Active Publication Date: 2018-11-23
BEIJING KUANGSHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the collected images are of poor quality, the accuracy of license plate recognition can be severely negatively affected

Method used

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  • License plate recognition method, device and system, and storage medium
  • License plate recognition method, device and system, and storage medium
  • License plate recognition method, device and system, and storage medium

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Embodiment Construction

[0041] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention.

[0042] An embodiment of the present invention provides a license plate recognition method. The license plate is the abbreviation of the vehicle number plate, which includes multiple characters. The characters on the license plate can include Chine...

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Abstract

Embodiments of the present invention provide a license plate recognition method, device and system, and a storage medium. The method comprises the steps: obtaining an image to be subjected to licenseplate recognition; performing character recognition on the image to be subjected to license plate recognition, so as to obtain a preliminary recognition result of the character; and determining a final recognition result based on license plate prior information and the preliminary recognition result. The license plate prior information is utilized for determining the final recognition result, andthe serious dependence of the license plate recognition technology on the image quality can be reduced according to the technical scheme. Even if the quality of the image to be subjected to license plate recognition is poor, an ideal recognition result can still be obtained based on the license plate prior information, thereby the license plate identification precision is remarkably improved.

Description

technical field [0001] The present invention relates to the field of image recognition, and more specifically relates to a license plate recognition method, device, system and storage medium. Background technique [0002] License plate recognition technology is an application of computer image recognition technology in vehicle license plate recognition. License plate recognition has been widely used in various vehicle management, such as the electronic toll collection (ETC) system of the expressway and the parking lot management system. [0003] The license plate recognition technology requires the ability to extract and recognize the license plate from the complex background of images (such as video frames), and then use license plate extraction, image preprocessing, feature extraction, license plate character recognition and other technologies to identify the specific license plate number and other information of the vehicle . [0004] License plate recognition includes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/34
CPCG06V30/153
Inventor 周舒畅马灵威
Owner BEIJING KUANGSHI TECH
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