%0 Journal Article
%T Fingerprint Image Enhancement Approach Based on Gray-level Phase<br>一种基于灰度级相位的指纹图像增强方法
%A TONG Xi-Feng
%A LIU Xue-Mei
%A LI Pan-Chi
%A HAN Yu-Xiang
%A YIN Xiao-Zhe
%A XIAO Hong
%A LI Peng-Fei
%A <br>佟喜峰
%A 刘雪梅
%A 李盼池
%A 韩玉祥
%A 尹晓喆
%A 肖红
%A 李鹏飞
%J 计算机系统应用
%D 2012
%I 
%X Image enhancement is an important procedure in an automatic fingerprint recognition system. An item called gray-level phase is defined, and a gray-level phase based image enhancement approach is proposed. In this approach, gray-level phase of each pixel is obtained firstly; then a filter is designed for gray-level phase; finally, the enhanced image is obtained according to the filtered gray-level phase. The experimental results show that the proposed approach is promising for low quality fingerprint image.
%K fingerprint recognition
%K image enhancement
%K gray-level phase<br>指纹识别
%K 图像增强
%K 灰度级相位
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D4F6864C950C88FFCE5B6C948A639E39&aid=57C6AD9B0ADA0537A36387E18A541C94&yid=99E9153A83D4CB11&vid=659D3B06EBF534A7&iid=B31275AF3241DB2D&sid=EF27C460877D3C9F&eid=334E2BB8B9A55ABB&journal_id=1003-3254&journal_name=计算机系统应用&referenced_num=0&reference_num=7