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License plate recognition method and device, electronic equipment and storage medium

A license plate recognition, license plate technology, applied in the field of license plate recognition

Pending Publication Date: 2020-06-19
BEIJING DIDI INFINITY TECH & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In related technologies, the license plate recognition technology can basically complete the recognition of the vehicle license plate in a specified environment, but the existing license plate recognition technology still has certain deficiencies.

Method used

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  • License plate recognition method and device, electronic equipment and storage medium
  • License plate recognition method and device, electronic equipment and storage medium
  • License plate recognition method and device, electronic equipment and storage medium

Examples

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Embodiment Construction

[0122] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0123] Among the ...

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PUM

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Abstract

The invention provides a license plate recognition method and device, electronic equipment and a storage medium, and relates to the field of license plate recognition. The license plate recognition method provided by the invention comprises the following steps: firstly, inputting a license plate picture into a feature extraction network to obtain a first feature map of the license plate picture; inputting the first feature map into a spatial transformation network to obtain a second feature map formed by rotating the first feature map; and finally, inputting the second feature map into a number recognition network to determine a recognition result of the license plate photo. According to the method provided by the invention, the spatial transformation network is added between the feature extraction network and the number recognition network; therefore, before the number recognition network performs license plate number recognition according to the feature map, the feature map is rotated by the spatial transformation network, so that the feature map input into the number recognition network is rotated, and the accuracy of recognizing a picture with an inclined license plate is improved.

Description

technical field [0001] The present application relates to the field of license plate recognition, in particular, to a license plate recognition method, device, electronic equipment and storage medium. Background technique [0002] With the continuous advancement of information technology, license plate recognition technology has been widely used in all walks of life. Vehicle parking meter charging technology and suspect vehicle tracking technology all rely on license plate recognition technology. [0003] In related technologies, the license plate recognition technology can basically complete the recognition of the vehicle license plate in a specified environment, but the existing license plate recognition technology still has certain deficiencies. Contents of the invention [0004] The purpose of this application is to provide a license plate recognition method, device, electronic equipment and storage medium. [0005] A license plate recognition method provided by this ...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06K9/00G06N3/04G06N3/08
CPCG06N3/08G06V40/172G06V20/63G06V20/625G06N3/045Y02T10/40
Inventor 张雪雷苟巍沈海峰
Owner BEIJING DIDI INFINITY TECH & DEV
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