License plate type identification method and device and electronic equipment

Abstract

The embodiment of the invention provides a license plate type identification method and device and electronic equipment. The method comprises the steps of obtaining a license plate image to be identified, and positioning a license plate area in the license plate image to be identified; Performing character recognition on the license plate area to obtain a character recognition result; Determininga target character feature corresponding to the license plate area according to the character recognition result; Determining a target license plate type corresponding to the target character featurefrom a preset license plate type library, the license plate type library being used for storing a corresponding relationship between the character feature and the license plate type; And determining alicense plate type corresponding to the to-be-identified license plate image according to the target license plate type. By applying the scheme provided by the embodiment of the invention, the license plate type identification accuracy can be improved under the condition that the license plate color information of different license plate types is the same.

Description

technical field [0001] The present application relates to the technical field of intelligent transportation, in particular to a license plate type recognition method, device and electronic equipment. Background technique [0002] The license plate is the "identity card" of the vehicle, which is an important information that distinguishes it from other motor vehicles. There are many types of license plates. In the same country or region, license plates can be divided into ordinary license plates, coach license plates, temporary license plates, armed police license plates, and military license plates. In areas where vehicles from multiple countries can pass, the license plate can be classified into different types according to the country to which the license plate belongs. Recognizing the type of license plate has important applications in obtaining vehicle information. [0003] In related technologies, when identifying the license plate type of the license plate image to ...

AI Technical Summary

Problems solved by technology

However, since there are a large number of license plate types in practice, the license plate color information corresponding to each license plate type is not different from each other. Therefore, for the situation that the license plate color information of different license plate types is the same, the accuracy rate of the license plate types identified by the above method is relatively low. Low

For example, if Figure 1a As shown, my country's military license plate 1 and police license plate 2 are both license plates with black characters on a white background, and the license plates of Croatia 3 and Slovakia 4 are both license plates with black characters on a white background. The above method cannot accurately distinguish the license plate images to be recognized as military license plates The license plate type is still a police license plate type, and it is impossible to accurately distinguish whether the license plate image to be recognized is a Croatian license plate type or a Slovak license plate type

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