基于纹线跟踪的指纹细节提取算法  

Fingerprint Minutiae Extraction by Following Its Ridge

作　　者：杨小冬[1] 宁新宝[1] 谭台哲[1] 

机构地区：[1]南京大学电子科学与工程系,江苏南京210093

出　　处：《计算机应用》2004年第3期75-78,共4页journal of Computer Applications

基　　金：南京大学重大应用研究预研基金项目 (2 0 0 1 -0 3 )

摘　　要：提出了一种基于脊线跟踪的细节点检测新方法,它直接从灰度级指纹图像中提取特征点信息,而不必经过二值化和细化过程,从而较大节约了运算时间,提高了可信度。实验证明,相对于传统算法,除了概念上稍复杂些外,该算法无论从效率或者鲁棒性方面,都具有明显的优势。We produce a new method for minutiae detection by following the ridge-line, where the minutiae are extracted directly from the original gray-scale fingerprint images. It follows the image ridgelines, until a termination or a bifurcation occurs. Relative to traditional algorithms, the processing time and credibility have been greatly improved. Experiment results show that this method performs better in terms of efficiency and robustness contrast to traditional algorithms.

关 键 词：灰度指纹图像 脊线跟踪 细节点检测 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]