信息网络安全 ›› 2018, Vol. 18 ›› Issue (10): 17-23.doi: 10.3969/j.issn.1671-1122.2018.10.003

• 技术研究 • 上一篇    下一篇

基于HMM与D-S证据理论的手势身份认证方法

孙子文1,2(), 李富1   

  1. 1. 江南大学物联网工程学院,江苏无锡 214122
    2. 物联网技术应用教育部工程研究中心,江苏无锡 214122
  • 收稿日期:2018-05-24 出版日期:2018-10-10 发布日期:2020-05-11
  • 作者简介:

    作者简介:孙子文(1968—),女,四川,教授,博士,主要研究方向为模式识别、人工智能、无线传感网络理论与技术、信息安全;李富(1990—),男,河南,硕士研究生,主要研究方向为移动终端身份认证安全理论及技术。

  • 基金资助:
    国家自然科学基金[61373126];中央高校基本科研业务费专项资金[JUSRP51510]

Gesture Authentication Method Based on HMM and D-S Evidence Theory

Ziwen SUN1,2(), Fu LI1   

  1. 1. School of Internet of Things Engineering, Jiangnan University, Wuxi Jiangsu 214122, China
    2. Engineering Research Center of Internet of Things Technology Applications, Ministry of Education, Wuxi Jiangsu 214122, China
  • Received:2018-05-24 Online:2018-10-10 Published:2020-05-11

摘要:

文章针对智能手机用户个人隐私及信息面临的安全问题,提出了一种基于HMM和D-S证据理论的手势身份认证方法。首先通过智能手机触摸屏传感器采集手势运动轨迹的原始数据并进行预处理,提取手势特征序列作为HMM的观察序列,建立合法用户手势模型;然后将测试手势特征序列与手势模型进行匹配计算获取初步判断结果;最后采用D-S证据理论组合规则得到融合后的概率分配函数进行最终的认证决策。仿真实验表明,文中方法与其他方法相比可有效提高手势身份认证的精度。

关键词: 手势识别, 身份认证, HMM, D-S证据理论, 手机传感器

Abstract:

Aiming at the security problems of smart phone users’ privacy and information, a gesture recognition identity authentication method based on HMM and D-S evidence theory is adopted. Firstly, the original data of the gesture trajectory is collected by the touch screen sensor of the smart phone, the gesture feature sequence is preprocessed and extracted as the observation sequence of the HMM, and a legal user gesture model is established. Secondly, the preliminary judgment result is obtained by matching the test gesture feature sequence and the gesture model, and then use D-S evidence theory combination rules to get the fusion probability distribution function for the final certification decision. Simulation results show that compared with other methods, this method can effectively improve the accuracy of gesture recognition authentication.

Key words: gesture recognition, identity authentication, HMM, D-S evidence theory, mobile sensor

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