信息网络安全

信息网络安全 ›› 2017, Vol. 17 ›› Issue (7): 59-65.doi: 10.3969/j.issn.1671-1122.2017.07.009

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一种新的云计算指纹中心点定位算法研究

闵祥参(), 张雪锋   

  1. 西安邮电大学通信与信息工程学院, 陕西西安 710121
  • 收稿日期:2017-05-15 出版日期:2017-07-20 发布日期:2020-05-12
  • 作者简介:

    作者简介： 闵祥参（1979—） ,女,山东,讲师,硕士,主要研究方向为信息系统安全;张雪锋（1975—）,男,陕西,教授,博士,主要研究方向为信息系统安全。

  • 基金资助:
    国家自然科学基金 [61301091];陕西省自然科学基础研究计划 [2015JQ6262];陕西省教育厅专项科研计划[15JK1669]

A New Algorithm of the Location of Fingerprint Core in Cloud Computing

Xiangshen MIN(), Xuefeng ZHANG   

  1. School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications,Xi’an Shaanxi 710121, China
  • Received:2017-05-15 Online:2017-07-20 Published:2020-05-12

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摘要：

在云计算中身份认证是其安全管理的基础,为了有效改进身份认证中的指纹图像中心点定位的效率,文章提出了一种基于区域划分和自适应路径选择的指纹中心点定位算法。首先通过区域划分对指纹图像进行分块预处理,基于统计分析的方法引入自适应路径选择方案,确定中心点定位的搜索区域移动路径。然后使用复合滤波器算法对当前区域内的指纹信息进行中心点检测,实现对指纹中心点的有效定位。实验结果表明,文章提出的算法在保证定位准确性的前提下,有效缩短了中心点检测的时间,具有更高的检测效率。

关键词: 中心点定位, 指纹识别, 区域划分, 自适应路径

Abstract:

In cloud computing, identity authentication is the foundation of its security management. In order to effectively improve the efficiency of locating the core of fingerprint image, an algorithm of the location of the fingerprint core based on the regional division and adaptive path selection is proposed. Firstly, the fingerprint image is pre-processed through the regional division, and the adaptation path scheme is introduced based on statistical analysis, and the search region moving path of the location of the core is determined. Then, it uses the complex filter algorithm to detect the core of the fingerprint information which in the current region, and it achieves effective the location of the fingerprint core. The experimental results show that, under the premise of ensuring the accuracy of positioning, this algorithm can effectively reduce the time of the core detection and it has better detection efficiency.

Key words: location of the core, fingerprint identification, region division, adaptive path

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