一种基于深度学习的车牌识别方法及系统

By using the YOLOv8 algorithm and the improved LPRNet network model, combined with cross-attention and multi-scale feature fusion modules, the problems of high complexity of license plate recognition models and inaccurate recognition in complex scenarios are solved, and efficient license plate recognition under different lighting and weather conditions is achieved.

CN120496046BActive Publication Date: 2026-07-17HUARONG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUARONG TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing license plate recognition technology models are highly complex and lack accuracy and reliability in complex scenarios, especially under different lighting conditions and complex weather conditions.

Method used

By employing the YOLOv8 algorithm model and the improved LPRNet network model, combined with the cross-attention module and the multi-scale feature fusion module, the robustness and accuracy of the model are improved through license plate target detection, segmentation and character recognition.

Benefits of technology

It effectively reduces the complexity of license plate recognition models, improves the reliability and accuracy of recognition in complex scenarios, and enhances the model's recognition capabilities under different lighting and weather conditions.

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Abstract

本发明提出了一种基于深度学习的车牌识别方法及系统,该方法包括:通过训练后YOLOv8算法模型对预处理后的待识别车辆图像进行车牌目标检测;根据检测到的车牌区域,确定车牌类型并定位车牌上的关键点位置;对车牌图像进行分割,提取出单独车牌字符区域;将提取的车牌字符区域输入到训练后的改进LPRNet网络模型中,进行字符识别;其中,改进LPRNet网络模型包括交叉注意力模块以及多尺度特征融合模块,所述交叉注意力模块用于动态融合浅层和深层特征图中不同层级的语义信息;所述多尺度特征融合模块用于对交叉注意力模块输出的不同尺度的特征图进行尺度融合,降低了车牌识别模型复杂度,提高了复杂场景下车牌识别的可靠性。
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