基于细化指纹图像特征提取的改进算法  

An Improved Minutiae Extraction Algorithm Based on Thinning Fingerprint Image

作　　者：赵磊[1] 徐雨明[1] 魏书堤[1] 陈琼[1] 姚丽君[1] 

机构地区：[1]衡阳师范学院计算机科学系,湖南衡阳421008

出　　处：《衡阳师范学院学报》2011年第6期90-93,共4页Journal of Hengyang Normal University

基　　金：衡阳师范学院青年科学基金项目(09A39)

摘　　要：文章深入研究了细化指纹图像细节点提取算法,针对常规提取算法中存在一定数量的伪细节点问题,提出了一种改进的细化指纹图像细节点提取算法。该算法在原有提取算法的基础上,在细节点提取中采用了邻域查找删除、边缘删除等措施。实验表明,该算法显著地减少了伪细节点的提取,是一种较为理想的细化指纹图像细节点提取算法。Minutiae extraction on thinning fingerprint images is studied deeply in this article. For used minutiae extraction algorithm, there exist some false minutiaes. A new improved minutiae extraction algorithm is proposed to solve the problem. The algorithm searches and omits minutiaes in neighbor fields, omits marginal minutiaes. Through lots of experiments, the algo- rithm has been proved to a better minutiae extraction algorithm which can significantly reduce false minutiaes in the extracting process.

关 键 词：细化指纹图像 细节点 邻域 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]