| 基于方向均值滤波的指纹图像平滑算法 |
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| 引用本文： | 徐正梅,刘静,陈蕴.基于方向均值滤波的指纹图像平滑算法[J].阜阳师范学院学报(自然科学版),2006,23(1):55-57. |
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| 作者姓名： | 徐正梅 刘静 陈蕴 |
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| 作者单位： | 1. 阜阳师范学院计算机系,安徽,阜阳,236041
2. 阜阳师范学院教育系,安徽,阜阳,236041 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 在分析了指纹图像的纹理特征之后,从指纹图像的纹理特征出发,研究了指纹图像的灰度分布规律,提出了基于方向均值滤波的指纹图像平滑算法．该方法首先求取指纹脊线方向,然后沿该方向上选择均值滤波平滑邻域, 最后采用均值滤波对指纹图像进行平滑处理．该方法可以有效地平滑指纹图像中的噪声,降低强噪声对后续处理的影响,从而有效地提高了指纹细节特征提取算法的准确性．
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| 关 键 词： | 指纹 指纹识别 指纹平滑 均值滤波 纹理 |
| 文章编号： | 1004-4329（2006）01-0055-03 |
| 收稿时间： | 2005-12-18 |
| 修稿时间： | 2005年12月18 |
Fingerprint Image Smoothing Algorithm Based on Orientation Average Filtering |
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| XU Zheng-mei,LIU Jing,CHEN Yun.Fingerprint Image Smoothing Algorithm Based on Orientation Average Filtering[J].Journal of Fuyang Teachers College:Natural Science,2006,23(1):55-57. |
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| Authors: | XU Zheng-mei LIU Jing CHEN Yun |
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| Institution: | 1. Computer Department ; 2. Education Department, Fuyang Teachers College, Fuyang ANhui 236041,China |
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| Abstract: | After analyzing the texture character of the fingerprint image and the gray distributing rule in the fingerprint image, the paper proposes the fingerprint image smoothing algorithm based on orientation average filtering. Firstly, the method acquires the ridge orientation of every fingerprint image region. Secondly, the method selects the average smoothing filter neighbor region along to the ridge orientation. Lastly, the method smoothes the fingerprint image adopting the average filtering algorithm. The method can smooth the noise in the fingerprint effectively, reduce the influence of the noise to the following fingerprint image processing method and improve the exactness of the minutiae acquire algorithm effectively. |
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| Keywords: | fingerprint fingerprint recognition fingerprint smoothness average filter texture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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