Mean shift for accurate license plate localization

W. Jia, Huaifeng Zhang, Xiangjian He, Massimo Piccardi
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引用次数: 96

Abstract

This paper presents a region-based algorithm for accurate license plate localization, where mean shift is utilized to filter and segment color vehicle images into candidate regions. Three features are extracted in order to decide whether a candidate region represents a real license plate, namely, rectangularity, aspect ratio, and edge density. Then, the Mahalanobis classifier is used with respect to above three features to classify license plate regions and non-license plate regions. Experimental results show that the proposed algorithm produces high robustness and accuracy.
平均移位精确车牌定位
本文提出了一种基于区域的车牌精确定位算法,该算法利用均值位移对彩色车辆图像进行滤波并分割到候选区域。为了确定候选区域是否代表真实的车牌,提取了三个特征,即矩形度、纵横比和边缘密度。然后,结合上述三个特征,利用Mahalanobis分类器对车牌区域和非车牌区域进行分类。实验结果表明,该算法具有较高的鲁棒性和准确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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