| 基于双树复小波变换的指纹增强算法 |
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| 引用本文： | 戴勤,黄小益,谢月新.基于双树复小波变换的指纹增强算法[J].湘南学院学报,2008,29(2):40-43. |
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| 作者姓名： | 戴勤 黄小益 谢月新 |
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| 作者单位： | 湘南学院,物理系,湖南,郴州,423000 |
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| 摘 要： | 基于指纹图像纹理多、方向性强的特征,本文提出了双树复小波指纹图象滤波增强的方法.双树复小波具有良好的方向选择性,在各子带中保留图象中各局部主方向的信息而滤除其他方向的噪声,而且可以避免对信号和噪声频率特性和统计特性进行估计,大大减小了算法的复杂程度.实验结果表明,该算法简单,增强效果较好,可用于噪声特性复杂的纹理图象的滤波.
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| 关 键 词： | 指纹图像滤波 增强 双树复小波变换 方向选择性 重构 双树复小波变换 指纹图象 增强算法 Complex Wavelet Transform Based Image Enhancement 滤波增强 纹理图象 噪声特性 增强效果 结果 实验 程度 估计 统计特性 噪声频率特性 信号 信息 主方向 局部 |
| 文章编号： | 1672-8173(2008)02-0040-04 |
| 修稿时间： | 2007年9月21日 |
The Fingerprint Image Enhancement Based on the Dual-tree Complex Wavelet Transform |
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| DAI Qin,HUANG Xiao-yi,XIE Yue-xin.The Fingerprint Image Enhancement Based on the Dual-tree Complex Wavelet Transform[J].Journal of Xiangnan University,2008,29(2):40-43. |
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| Authors: | DAI Qin HUANG Xiao-yi XIE Yue-xin |
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| Institution: | DAI Qin,HUANG Xiao-yi,XIE Yue-xin (Department of Physics,Xiangnan University,Chenzhou 423000,China) |
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| Abstract: | A fingerprint image enhacement method is proposed which is based on the good directional characteristics of dual-tree complex wavelet transform since the fingerprint is complicated textures image.The information of the local main orientation in each sub and of wavelet transform domain is reserved,and the noise distributed in other directions is removed.This method is proven to be not only less complex,since it avoids the frequency and statistical estimations on both the signal and noise,but also on better d... |
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| Keywords: | fingerprint image filtering enhancement dual-tree complex wavelet transform directional selectivity re-construction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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