计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (16): 170-173.DOI: 10.3778/j.issn.1002-8331.2010.16.050

• 图形、图像、模式识别 • 上一篇    下一篇

改进的主曲线算法在指纹骨架提取中的应用

马 驰1,2,张红云3,苗夺谦3   

  1. 1.北京科技大学 经济管理学院,北京 100083
    2.辽宁科技大学 计算机科学与工程学院,辽宁 鞍山 114051
    3.同济大学 计算机科学与技术系,上海 200092
  • 收稿日期:2009-02-27 修回日期:2009-04-13 出版日期:2010-06-01 发布日期:2010-06-01
  • 通讯作者: 马 驰

Improvement of principal curves algorithm and its application in fingerprint skeleton extraction

MA Chi1,2,ZHANG Hong-yun3,MIAO Duo-qian3
  

  1. 1.School of Economics and Management,University of Science and Technology Beijing,Beijing 100083,China
    2.School of Computer Science and Engineering,University of Science and Technology Liaoning,Anshan,Liaoning 114051,China
    3.Department of Computer Science and Technology,Tongji University,Shanghai 200092,China
  • Received:2009-02-27 Revised:2009-04-13 Online:2010-06-01 Published:2010-06-01
  • Contact: MA Chi

摘要: 在指纹识别系统中,指纹骨架的提取是一个重要而困难的环节,传统的细化算法得到的骨架很容易受到噪声的干扰。因此,在研究指纹数据特点和Kégl的主曲线算法的基础上,提出了一种改进的主曲线算法。实验结果表明:改进算法与传统算法相比有着更好的效率和效果,它所提取的指纹骨架包含更多的信息且具有更高的准确性、可靠性和抗噪声性。

关键词: 主曲线, 指纹, 细化, 骨架提取

Abstract: In the fingerprint recognition system,skeleton extraction for fingerprint images is an important and difficult task.Traditional thinning algorithms are susceptible to noise.In view of this,according to some characteristics of the fingerprint dataset and study on the original principal curves algorithm proposed by Kégl,an improved principal curves-based algorithm is proposed,which can be served as the skeleton of a fingerprint.Experimental results show that the improved principal curve algorithm is better in efficiency and quality than the original algorithm.The skeleton obtained by improved algorithm contains more information quantity and is proved to be more accurate,reliable and anti-noisy.

Key words: principal curve, fingerprint, thinning, skeleton extraction

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