Double-layer license plate recognition method and device, compute device and storage medium

Abstract

The present invention discloses a double-layer license plate recognition method and device, a compute device and a storage medium. The method comprises by acquiring the initial license plate image, and preprocessing the initial license plate image, obtaining the target license plate image, and using the support vector machine to judge the number of license plate layers to ensure the accurate recognition of the double-decker license plate, if the number of license plate layers is double, sliding windows are used for each layer, so that each layer of the license plate image is divided into a plurality of images containing partially overlapping sliding windows, the characters in the license plate number appear repeatedly, the situation that part of the characters in the license plate number are not recognized due to relying on the manually divided character cutting template is avoided, and the double-layer license plate recognition universality is improved. Meanwhile, the image of the sliding window is inputted to the convolution neural network for recognition, and the corresponding recognition results are obtained quickly, which improves the efficiency of the double-layer license plate recognition.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a double-layer license plate recognition method, device, computer equipment and storage medium. Background technique [0002] With the development of social economy, more and more cars appear in road traffic or parking places, which brings a lot of convenience to people's life, but the management of cars is becoming more and more complicated. Such as vehicle charging and management, traffic flow detection, parking lot fee management, monitoring of illegal vehicles, identification of vehicles with fake license plates and other specific issues. [0003] In response to these problems, the main method currently adopted is to manage vehicles by identifying license plates. The current general license plates include single-layer license plates and double-layer license plates. Delineate the ratio, segment the license plate image, and then perform license plate recognition on th...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a double-layer license plate recognition method, device, computer equipment, and storage medium to solve the current problems of low accuracy and weak versatility in double-layer license plate recognition

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