摘要
本论文分析了有关指纹图象预处理及特征提取的方法,在研究过程中,提出了空域方向性滤波法和均衡增强法两种去嗓声方法,及基于指纹原图的一次性细化方法,并对指纹中心点的定义作了改进。
In this paper,we analysed relevant methods for the preprocessing and feature extraction for fingerprint. In the course of the research. two kinds of methods. space directional filtered method and equalizationenhancement method. for noise elimination. a new thinning method which can only pass over a source fingerprint image is presented. and the definition of the center of a fingerprint is improved.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
1989年第4期106-112,共7页
Journal of Hefei University of Technology：Natural Science
关键词
指系文
图象处理
特征提取
计算机
fingerprint Feature point, space directional filtered method, equalization-erhancement method, thinning, binary.
