License plate classification method, license plate classification device and computer readable storage medium

A license plate classification and license plate technology, applied in the field of image processing, can solve the problems of difficulty in collecting data, high license plate similarity, and low classification accuracy, so as to reduce the difficulty of learning and improve the accuracy.

Active Publication Date: 2021-09-17
ZHEJIANG DAHUA TECH
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Problems solved by technology

However, because the overseas license plate country classification task needs to obtain the license plate data of various overseas countries, it is difficult to collect complete data, which has high requirements for the generalization ability of the classification model; in addition, some countries (especially those

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  • License plate classification method, license plate classification device and computer readable storage medium
  • License plate classification method, license plate classification device and computer readable storage medium
  • License plate classification method, license plate classification device and computer readable storage medium

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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the 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. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0020] For the convenience of illustrating the principle and motive of the scheme provided by the present application, now give an example, Figure 1(a)-1(c) Figure 1(a) is the license plate of country A, Figure 1(b) is the license plate of country B, Figure 1(c) is the license plate of country C, and the license plate of country A The appearance similarity with the license plate of country B is extremely high, and it cannot be accurately classified by ordinar...

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Abstract

The invention discloses a license plate classification method, a license plate classification device and a computer readable storage medium, and the method comprises the steps: carrying out license plate recognition of a first license plate image, and obtaining a license plate recognition result; encoding the license plate recognition result to obtain a first license plate feature; performing feature extraction on the first license plate image to obtain a second license plate feature; and processing the first license plate feature and the second license plate feature by using a classification network to obtain a first license plate classification result. In this way, the accuracy of license plate classification can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a license plate classification method, a license plate classification device and a computer-readable storage medium. Background technique [0002] Overseas license plate classification technology refers to the country where a license plate is input and the license plate belongs to. The current license plate classification technology is mainly divided into two categories: traditional image processing methods and deep learning. Compared with traditional image processing methods, deep learning-based license plate The classification method has higher accuracy, is suitable for various types of license plate classification, and has a wider application range. However, because the overseas license plate country classification task needs to obtain the license plate data of various overseas countries, it is difficult to collect complete data, which has high requirements ...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46G06T9/00
CPCG06T9/00G06F18/24G06V20/625
Inventor 薛佳乐敦婧瑜王亚运张湾湾李轶锟
Owner ZHEJIANG DAHUA TECH
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