首页> 外文学位 >Recognizing user identity by touch on tabletop displays: An interactive authentication method.
【24h】

Recognizing user identity by touch on tabletop displays: An interactive authentication method.

机译:通过在桌面显示器上触摸来识别用户身份:一种交互式身份验证方法。

获取原文
获取原文并翻译 | 示例

摘要

Multi-touch tablets allow users to interact with computers through intuitive, natural gestures and direct manipulation of digital objects. One advantage of these devices is that they can offer a large, collaborative space where several users can work on a task at the same time. However the lack of privacy in these situations makes standard password-based authentication easily compromised. This work presents a new gesture-based authentication system based on users' unique signature of touch motion. This technique has two key features. First, at each step in authentication the system prompts the user to make a specific gesture selected to maximize the expected long-term information gain. Second, each gesture is integrated using a hierarchical probabilistic model, allowing the system to accept or reject a user after a variable number of gestures. This touch-based approach would allow the user to accurately authenticate without the need to cover their hand or look over their shoulder. This method has been tested using a set of samples collected under real-world conditions in a business office, with a touch tablet that was used on a near daily basis by users familiar with the device. Despite the lack of sophisticated, high-precision equipment, the system is able to achieve high user recognition accuracy with relatively few gestures, demonstrating that human touch patterns have a distinctive signature" that can be used as a powerful biometric measure for user recognition and personalization.
机译:多点触摸平板电脑允许用户通过直观自然的手势和直接操作数字对象来与计算机进行交互。这些设备的一个优势是,它们可以提供一个巨大的协作空间,几个用户可以同时从事一项任务。但是,在这些情况下缺乏隐私会使基于密码的标准身份验证容易受到损害。这项工作提出了一个新的基于手势的身份验证系统,该系统基于用户对触摸动作的独特签名。该技术具有两个关键特征。首先,在身份验证的每个步骤中,系统都会提示用户做出选择的特定手势,以最大化预期的长期信息增益。其次,使用分层概率模型将每个手势集成在一起,从而允许系统在可变数量的手势之后接受或拒绝用户。这种基于触摸的方法将允许用户准确地进行身份验证,而无需遮盖手或看着肩膀。该方法已经在一组真实的条件下,通过在商务办公室中使用一组触摸板进行了测试,该触摸板由熟悉该设备的用户几乎每天使用。尽管缺少复杂的高精度设备,该系统仍能够以相对较少的手势实现较高的用户识别精度,这表明人的触摸模式具有独特的特征”,可以用作用户识别和个性化的有力生物度量。 。

著录项

  • 作者

    Torres Peralta, Raquel.;

  • 作者单位

    The University of Arizona.;

  • 授予单位 The University of Arizona.;
  • 学科 Information Science.;Information Technology.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 86 p.
  • 总页数 86
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:43:51

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号