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基于伪线性方向扩散方程的指纹图像增强

, PP. 806-811

Keywords: 相关扩散方程,指纹图像,图像增强,指纹识别,模式识别

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Abstract:

根据指纹图像上纹路的方向特性,提出一种伪线性的基于方向扩散方程的指纹增强方法.首先总结原有相关扩散方程的优缺点,并针对相关扩散方程在方向信息较复杂情况下,不能够沿着指纹纹路方向扩散提出改进方法.改进后的方法具有更好的方向扩散特性,在去噪和保持指纹图像纹路信息方面表现更优.最后,针对改进的方法具有非线性偏微分方程的形式,计算复杂度较高的不足,提出伪线性形式的方向扩散方程.该方法具有线性算子的优点、计算量小,有利于指纹识别实时系统应用.

References

[1]  Jain A, Hong L, Bolle R. On-Line Fingerprint Verification. IEEE Trans on Pattern Analysis and Machine Intelligence, 1997, 19(4): 302-314
[2]  Gu J W, Zhou J, Zhang D. A Combination Model for Orientation Field of Fingerprints. Pattern Recognition, 2004, 37(3): 543-553
[3]  Hong L, Wan Y F, Jain A. Fingerprint Image Enhancement: Algorithm and Performance Evaluation. IEEE Trans on Pattern Analysis and Machine Intelligence, 1998, 20(8): 777-789
[4]  Hsieh C T, Lai E, Wang Y C. An Effective Algorithm for Fingerprint Image Enhancement Based on Wavelet Transform. Pattern Recognition, 2003, 36(2): 303-312
[5]  He Y L, Tian J, Luo X P, et al. Image Enhancement and Minutia Matching in Fingerprint Verification. Pattern Recognition Letter, 2003, 24(9/10): 1349-1360
[6]  Cheng Jiangang, Tian Jie, He Yuliang, et al. Fingerprint Enhancement Algorithm Based on Nonlinear Diffusion Filter. Acta Automatica Sinica, 2004, 30(6): 854-862 (in Chinese) (程建刚, 田 捷, 何余良, 等. 基于非线性扩散滤波的指纹增强算法. 自动化学报, 2004, 30(6): 854-862)
[7]  Weickert J. A Review of Nonlinear Diffusion Filtering // Romeny B M H, Florack L, Koenderink J J, et al, eds. Lecture Notes in Computer Science. London, UK: Springer-Verlag, 1997, 1252: 3-28
[8]  Weickert J. Multiscale Texture Enhancement // Proc of the 6th International Conference on Computer Analysis of Images and Patterns. Prague, Czech Republic, 1995: 230-237
[9]  Weickert J, Scharr H. A Scheme for Coherence-Enhancing Diffusion Filtering with Optimized Rotation Invariance. Journal of Visual Communication and Image Representation, 2002, 13(1/2): 103-118

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