Research and Implementation of a License Plate Recognition Algorithm Based on Hierarchical Classification

• 作者: Haofei Gao Ming Han Wanrong Sun Xinran Liu
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: WAVELET PACKET K-L TRANSFORM SVM Recognition LICENSE Plate
• 年，卷（期）: 2014,（2）
• 页码范围: 25-30
• 页数: 6页
• 分类号: TP39

摘要

This paper proposed an improved method for license plate recognition based on hierarchical classification. First, the method of feature extraction and dimension reduction is presented by finding the optimal wavelet packet basis in the process of wavelet packet decomposition and K-L transform. Then the recognition algorithm is introduced based on feature extraction and hierarchical classification. Finally, the principles and procedures of using support vector machines, Harris corner detection algorithm and digital character classification are explained in detail. Simulation results indicate that the presented recognition algorithm performs well with higher speed and efficiency in recognition.