计算机工程与应用2012，Vol.48Issue(10)：179-182,211,5.DOI:10.3778/j.issn.1002-8331.2012.10.040
一种新的全局指纹图像参考点检测算法
New global reference point detection algorithm in fingerprint images
摘要
Abstract
This paper presents a global reference point detection algorithm of fingerprint images. After the downward-curvature intensity graph is obtained, the algorithm can locate the reference point from where a maximum line-projection starts. Another algorithm for estimating of supposed reference point which is outside the foreground has been also proposed. Experiment results show that this algorithm has a higher accuracy than that of traditional Poincare Index algorithm, and it is also less sensitive to noise than traditional Poincare Index algorithm. Moreover, this algorithm can deal with plain-arch type fingerprints which Poincare Index can't.关键词
参考点/奇异点/指纹识别/方向场Key words
reference point/ singular points/ fingerprint recognition/ orientation field分类
信息技术与安全科学引用本文复制引用
孔锐,尹志翔,吕新广..一种新的全局指纹图像参考点检测算法[J].计算机工程与应用,2012,48(10):179-182,211,5.基金项目
广东省教育部产学研结合项目(No.2008B090500185) （No.2008B090500185）
广东省科技计划重点项目(No.2009A030200002). （No.2009A030200002）
