各向异性张量逆扩散指纹图像增强方法  

Fingerprint image enhancement method based on anisotropic tensor reverse diffusion

作　　者：苏永利[1] 张博[1] 张书玲[1] 

机构地区：[1]西北大学数学系,西安710069

出　　处：《计算机工程与应用》2009年第31期180-182,共3页Computer Engineering and Applications

基　　金：陕西省教育厅资助科研课题No.JK05303~~

摘　　要：由热扩散方程给出了一种基于张量扩散的各向异性逆扩散图像增强方法。该方法在对指纹图像滤波的同时,不仅保护了指纹的纹线,而且增强了纹线。实验结果表明该方法比传统的中值滤波、高斯滤波具有增强边缘的效果,更适合纹理密集的指纹图像的处理。This paper gives an image enhancement method based on anisotropic tensor reverse diffusion from heat diffusion function.This method filters the fingerprint image,at the same time not only protect the fingerprint ridge,but enhance it. Experimental results show that this method has the effect of enhance edge compared with traditional method,such as medium filtering and Gaussian filtering,more suitable for dense texture image processing.

关 键 词：张量扩散 各向异性 逆扩散 指纹 图像增强 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]