基于高斯调制二维正弦曲面滤波器的指纹增强算法
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摘要
针对指纹图像的纹理特征,深入分析了指纹图像的纹理结构及与二维正弦曲面模式的相似性,构造设计了二维正弦曲面滤波器。为了降低边际噪声对滤波器性能的影响,提升滤波器的滤波增强效果,采用二维高斯函数对二维正弦曲面滤波器进行调制,最终构建了高斯调制二维正弦曲面滤波器,设计实现了基于该滤波器的指纹增强算法。分组实验结果表明,文中提出的基于高斯调制二维正弦曲面滤波器的指纹增强算法能够有效地提高指纹图像的质量,对普遍存在于低质量指纹图像中的断线、疤痕和粘连等强噪声区域的增强效果更好。
A two-dimensional sine quadric surface filter is constructed and designed after analyzing the texture structure of fingerprint image and the comparability between the texture structure and two-dimensional sine quadric surface pattern.To reduce the effect of marginal noise on the performance of the filter and improve the enhancement capability of the filter,the paper adopts two-dimensional Gaussian function to modulate the two-dimensional sine quadric surface filter.Finally,the paper produces the fingerprint enhancement algorithm based on two-dimensional sine quadric surface filter modulated by Gaussian function.The grouping experimental results show that the proposed fingerprint enhancement algorithm can improve the quality of fingerprint image and reduce the effect of strong noise,such as the broked texture,the scar and the conglutination in the low-quality fingerprint image.
A two-dimensional sine quadric surface filter is constructed and designed after analyzing the texture structure of fingerprint image and the comparability between the texture structure and two-dimensional sine quadric surface pattern.To reduce the effect of marginal noise on the performance of the filter and improve the enhancement capability of the filter,the paper adopts two-dimensional Gaussian function to modulate the two-dimensional sine quadric surface filter.Finally,the paper produces the fingerprint enhancement algorithm based on two-dimensional sine quadric surface filter modulated by Gaussian function.The grouping experimental results show that the proposed fingerprint enhancement algorithm can improve the quality of fingerprint image and reduce the effect of strong noise,such as the broked texture,the scar and the conglutination in the low-quality fingerprint image.
引文
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[9]彭章平,彭小奇,伍更新.基于非平稳信号频谱分析的指纹图像增强算法[J].数据采集与处理,2008,23(1):35-39.Peng Zhangping,Peng Xiaoqi,Wu Gengxin.Fingerprint enhancement algorithm based on non-stationary signal frequency spectrum analysis[J].Journal of Data Acquisition and Processing,2008,23(1):35-39.
[10]程建刚,田捷,何余良.基于非线性扩散滤波的指纹增强算法[J].自动化学报,2004,20(6):854-862.Cheng Jiangang,Tian Jie,He Yuliang.Fingerprint enhacement based on nonlinear diffusion filter[J].Journal of ACTA Automatic Sinica,2004,20(6):854-862.
[11]赵晓丽,孔勇.基于高斯小波的多尺度积图像边缘检测算法[J].数据采集与处理,2012,27(4):490-494.Zhao Xiaoli,Kong Yong.Image edge detection algorithm based on multi-scale product of Gaussian wavelet[J].Journal of Data Acquisition and Processing,2008,23(1):490-494.
[12]Jiang Murong,Zhong Yinghao,Wang Xin,et al.Improve the nonparametric image segmentation with narrowband levelset and fast Gauss transformation[J].Applied Mathematics,2012,3(11):1836-1841.
[13]詹小四,宁新宝,尹义龙,等.基于多级分块尺寸下的指纹方向信息提取[J].南京大学学报:自然科学版,2003,39(4):476-482.Zhan Xiaosi,Ning Xinbao,Yin Yilong,et al.The algorithm for distilling fingerprint orientation in multi-level block size[J].Journal of Nanjing University:Nature Science Edition,2003,39(4):476-482.
[14]陈蕴,尹义龙,张晓梅,等.一种基于统计窗的纹线距离估计方法[J].中国图象图形学报,2003,8(3):266-270.Chen Yun,Yin Yilong,Zhang Xiaomei,et al.A method based on statistical window for ridge distance estimation in fingerprint image[J].Journal of Image and Graphics,2003,8(3):266-270.
[2]Hong L,Wan Y,Jain A K.Fingerprint image enhancement:Algorithm and performance evaluation[J].IEEE Transactions on PAMI,1998,20(8):777-789.
[3]Hong L,Jain A K,Pankanti S,et al.Fingerprint enhancement[C]∥Proc IEEE Workshop on Applications of Computer Vision.Sarasota,FI:IEEE,1996:202-207.
[4]尹义龙,詹小四,谭台哲,等.基于加博函数的指纹增强算法及其应用[J].软件学报,2003,14(3):483-489.Yin Yilong,Zhan Xiaosi,Tan Taizhe,et al.An algorithm based on Gabor function for fingerprint enhancement and its application[J].Journal of Software,2003,14(3):483-489.
[5]Kamei T,Mizoguchi M.Image filter design for fingerprint enhancement[C]∥Proc ISVC’95.Coral Gables,FL:[s.n.],1995:109-114.
[6]武妍,杨磊.一种改进的基于方向滤波的指纹图像增强算法[J].华中科技大学学报:自然科学版,2007,35(2):22-25.Wu Yan,Yang Lei.An improved orientation filter-based algorithm for fingerprint enhancement[J].Jourmal of Huazhong University Science&Technology:Natural Science Edition,2007,35(2):22-25.
[7]王玮,李见为,黄非非,等.基于Log-Gabor滤波的指纹增强[J].计算机科学,34(7):241-243,2007.Wang Wei,Li Jianwei,Huang Feifei,et al.Fingerprint enhancement based on Log-Gabor[J].Computer Science,2007,34(7):241-243.
[8]詹小四,尹义龙,孟祥旭,等.基于二维正弦曲面滤波器的指纹图像增强算法研究[J].山东大学学报:工学版,2009,29(2):8-14.Zhan Xiaosi,Yin Yilong,Meng Xiangxu,et al.Research on fingerprint image enhancement algorithm based on two-dimensional sine quadric surface filter[J].Journal of Shandong University:Engineering Science Edition,2009,39(2):8-14.
[9]彭章平,彭小奇,伍更新.基于非平稳信号频谱分析的指纹图像增强算法[J].数据采集与处理,2008,23(1):35-39.Peng Zhangping,Peng Xiaoqi,Wu Gengxin.Fingerprint enhancement algorithm based on non-stationary signal frequency spectrum analysis[J].Journal of Data Acquisition and Processing,2008,23(1):35-39.
[10]程建刚,田捷,何余良.基于非线性扩散滤波的指纹增强算法[J].自动化学报,2004,20(6):854-862.Cheng Jiangang,Tian Jie,He Yuliang.Fingerprint enhacement based on nonlinear diffusion filter[J].Journal of ACTA Automatic Sinica,2004,20(6):854-862.
[11]赵晓丽,孔勇.基于高斯小波的多尺度积图像边缘检测算法[J].数据采集与处理,2012,27(4):490-494.Zhao Xiaoli,Kong Yong.Image edge detection algorithm based on multi-scale product of Gaussian wavelet[J].Journal of Data Acquisition and Processing,2008,23(1):490-494.
[12]Jiang Murong,Zhong Yinghao,Wang Xin,et al.Improve the nonparametric image segmentation with narrowband levelset and fast Gauss transformation[J].Applied Mathematics,2012,3(11):1836-1841.
[13]詹小四,宁新宝,尹义龙,等.基于多级分块尺寸下的指纹方向信息提取[J].南京大学学报:自然科学版,2003,39(4):476-482.Zhan Xiaosi,Ning Xinbao,Yin Yilong,et al.The algorithm for distilling fingerprint orientation in multi-level block size[J].Journal of Nanjing University:Nature Science Edition,2003,39(4):476-482.
[14]陈蕴,尹义龙,张晓梅,等.一种基于统计窗的纹线距离估计方法[J].中国图象图形学报,2003,8(3):266-270.Chen Yun,Yin Yilong,Zhang Xiaomei,et al.A method based on statistical window for ridge distance estimation in fingerprint image[J].Journal of Image and Graphics,2003,8(3):266-270.