摘要
提出了一种新的指纹联合匹配算法。该算法基于细节点周围的纹理结构信息和细节点构造出指纹特征向量。对指纹纹理进行滤波平滑,提取纹理方向信息,进而利用指纹块的纹理信息简化数据处理过程,从而提高匹配速度。该算法计算速度快,具有较高的识别率,且能较好的正确识别偏移、信息残缺等质量较差的指纹图像,具有很强的鲁棒性,在实际应用中取得了良好的效果。
A new fingerprints joint matching method is presentd. This algorithm is based on fingerprint feature vector generated by texture information around minutia and minutia information, For the sake of reducing data process and improving matching speed, fingerprint texture is filtered and smoothed and texture direction information is extracted, The algorithm has a good effect in practical applications for the fast computation, high recognition and better recognition of drift and information deformity etc,with the worse quality of fingerprints.
作者
颜永龙
李见为
李任卓
黄雪青
何为
YAN Yong-long,LI Jian-wei, LI Ren-zhuo, HUANG Xue-qing, HE Wei （1.Key Lab of Optoelectronic Technology ＆ Systems, Ministry of Education, Chongqing University, Chongqing 400030, China;2.Chongqing Communications institute, chongqing 400035, China）
出处
《电脑知识与技术》
2007年第9期1432-1433,1436,共3页
Computer Knowledge and Technology
关键词
指纹匹配
指纹纹理
纹理方向
fingerprint matching
fingerprint texture
texture direction
