Recognition method, device and terminal equipment for Chinese characters in license plate
A Chinese character and recognition method technology, applied in the field of vehicles, can solve the problems of increasing configuration complexity and limited Chinese character recognition accuracy.
Active Publication Date: 2021-01-29
ZHEJIANG UNIVIEW TECH CO LTD
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Problems solved by technology
Such a method is not applicable in scenarios where there are many foreign vehicles, such as highways, municipalities and other areas are not very effective, and it is extremely limited in improving the recognition accuracy of Chinese characters.
And there are such configuration items, which also increases the complexity of configuration
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[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.
[0020] It should be noted ...
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The present invention relates to the technical field of vehicles, in particular to a method for recognizing Chinese characters in a license plate, a device, and a terminal device. The method and device for recognizing Chinese characters in a license plate are applied to terminal devices. The method for recognizing Chinese characters in a license plate includes: receiving license plate image, and then calculate the confidence of each Chinese character in the license plate image, if the confidence of the Chinese character is lower than the preset matching threshold, then set the Chinese character as the preset target character. Wherein, if the confidence level of the Chinese character is lower than the preset matching threshold, it indicates that the recognition result of the Chinese character is inaccurate. Therefore, the Chinese character is set as the preset target character to improve the accuracy of the Chinese character recognition. It should be noted that the preset matching threshold and the preset target characters are updated in real time, therefore, by using this data as a standard, the accuracy rate of Chinese characters in the license plate can be greatly improved.
Description
technical field [0001] The present invention relates to the technical field of vehicles, and in particular, to a method, device and terminal equipment for recognizing Chinese characters in a license plate. Background technique [0002] In the intelligent traffic road management system, license plate recognition is the core technology, and the accuracy of license plate recognition is directly related to the effectiveness of road monitoring and law enforcement. However, for domestic license plates, there are Chinese characters with complex strokes, unlike European license plates that only have numbers and letters, because the recognition of Chinese characters is relatively difficult, so domestic license plates have higher recognition requirements. Therefore, the algorithms of domestic manufacturers will have configuration items for provinces, and in the case of fuzzy scenes and low confidence in Chinese characters, they will be directly assigned to the default configuration pr...
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IPC IPC(8): G06K9/32G06K9/34
CPCG06V20/63G06V10/267G06V20/625
Inventor 罗维张武丽
Owner ZHEJIANG UNIVIEW TECH CO LTD