| 一种有效的指纹预处理组合算法 |
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| 引用本文： | 胡之惠,李小云.一种有效的指纹预处理组合算法[J].计算机工程与设计,2007,28(10):2384-2388. |
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| 作者姓名： | 胡之惠 李小云 |
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| 作者单位： | 1. 上海电机学院,电子信息学院,上海,200240
2. 浙江理工大学,理学院,浙江,杭州,310018 |
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| 基金项目： | 上海高校选拔培养优秀青年科研专项基金 |
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| 摘 要： | 系统分析指纹预处理全过程,在图像初滤波和方向滤波器设计方面提出新见解.结合指纹图像高频丰富的特点,及小波包高频分辨率高的分析特性,采用小波包分析对指纹图像进行初滤波;设计方向滤波器时,对滤波器的旋转引入方-圆变换,减少计算复杂度,同时避免引入误差.对含高斯白噪声指纹图像的实验结果表明,该预处理算法是有效的.
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| 关 键 词： | 指纹预处理 初滤波 小波包 方向滤波器 方-圆变换 指纹预处理 组合算法 fingerprint recognition algorithm preprocessing combinatorial 预处理算法 结果 实验 高斯白噪声 误差 计算复杂度 变换 旋转 方向滤波器 滤波器设计 小波包分析 分析特性 分辨率 指纹图像 |
| 文章编号： | 1000-7024（2007）10-2384-05 |
| 修稿时间： | 2006-07-08 |
Effective combinatorial preprocessing algorithm for fingerprint recognition |
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| HU Zhi-hui,LI Xiao-yun.Effective combinatorial preprocessing algorithm for fingerprint recognition[J].Computer Engineering and Design,2007,28(10):2384-2388. |
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| Authors: | HU Zhi-hui LI Xiao-yun |
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| Affiliation: | 1, School of Electronic and Information, Shanghai Dianji University, Shanghai 200240, China; 2, College of Science, Zhejiang Sci-Tech University, Hangzhou 310018, China |
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| Abstract: | The whole process of fingerprint preprocessing is analyzed, new approaches for image preliminary filtering and the design of orientation filter are proposed. Because the high resolution on high frequency of wavelet package met the feature of fingerprint containing abundant high frequency, the fingerprint is filtered preliminarily by wavelet package. While designing orientation filter, the square-circle transform to rotate filter is introduced, thus computing complexity is reduced and imported errors is avoided. Experimental results of the fingerprint containing gauss white noise show the preprocessing algorithm is effective. |
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| Keywords: | fingerprint preprocessing preliminary filtering wavelet package orientation filter square-circle transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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