License plate recognition method and device

Abstract

The invention belongs to the field of image recognition and provides a license plate recognition method and device. The method comprises the steps of acquiring a license plate image; obtaining a plurality of feature vectors in the license plate image through a convolution neural network model; sequentially inputting the plurality of feature vectors into a circulation neural network model so as toobtain a classification value sequence, wherein the classification value sequence comprises a plurality of classification values, and each classification value corresponds to one character in a license plate; determining characters corresponding to the license plate image according to the classification value sequence. According to the invention, feature vectors in the license plate image are directly extracted and classified, so that the whole license plate can be directly recognized. Meanwhile, the characters of the license plate are prevented from being segmented and separately recognized,so that the recognition speed is increased.

Description

technical field [0001] The invention belongs to the field of image recognition, in particular to a license plate recognition method and device. Background technique [0002] In the prior art, license plate recognition has always been one of the research hotspots and key technologies of intelligent traffic management systems. The application of license plate recognition is very extensive, such as automatic highway toll collection, parking lot toll management, criminal investigation and so on. If these license plates are identified manually, a lot of manpower and material resources will be wasted. [0003] The traditional license plate character recognition method first needs to perform character segmentation on the located license plate, then extract character features from a single character, and finally perform pattern recognition. This method has more steps and slower recognition speed. [0004] There is currently no ideal solution in the industry for the slow speed of ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a license plate recognition method and device, aiming at solving the problem of slow speed of license plate recognition in the prior art

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