【Key words】 fingerprint； Gabor function； fingerprint enhancement； ridge orientation； ridge frequency；
基于8个网页-相关网页
Orientation filter is a method that filters the fingerprint image along ridge orientation.
方向滤波是沿着指纹纹线方向滤波的方法。
参考来源 - 一种有效的指纹图像方向滤波增强算法—《计算机应用研究》—2008年第10期—龙源期刊网·2,447,543篇论文数据，部分数据来源于NoteExpress
An estimation method of fingerprint ridge distance based on ridge orientation projection signal spectrum analysis is proposed to overcome some shortages in the present literatures.
提出了一种基于纹线方向投影信号谱分析的指纹纹线间距估计方法。
We also improve on the binarization method of fingerprint images based on the 2~(nd) derivative by the orientation and ridge frequency of the images.
在方向图和脊线频率的基础上，实现了基于二阶导数的指纹图像二值化算法；
We also improve on the binarization method of fingerprint images based on the 2nd derivative by the orientation and ridge frequency of the images.
在方向图和脊线频率的基础上，实现了一种基于脊线方向分析的方法对指纹图象进行二值化；
应用推荐