arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1409.0924cs.CVcs.CR
收藏

使用自动唇读的视觉密码

Visual Passwords Using Automatic Lip Reading

Mu'tah University(穆塔大学)

Ahmad Basheer Hassanat

摘要:

本文提出了一种视觉密码系统,以增加安全性。该系统主要依赖于单独使用视觉语音信号来识别说话者。该方案分为两个阶段:设置视觉密码阶段和验证阶段。在设置阶段,视觉密码系统请求用户说出选定的密码,捕获用户面部的视频记录,并由基于特殊单词的VSR系统处理,该系统提取特征向量序列。在验证阶段,执行相同的程序,将发送特征以与存储的视觉密码进行比较。所提出的方案已被评估使用20个不同的扬声器(10名女性和10名男性)的视频数据库,和15个男性在另一个视频数据库中具有不同的实验集。评估证明了该系统的可行性,在最坏的测试情况下,平均出错率在7.63%至20.51%的范围内,因此,有可能成为一个实用的方法与其他传统的身份验证方法,如使用用户名和密码的支持。

英文摘要:

This paper presents a visual passwords system to increase security. The system depends mainly on recognizing the speaker using the visual speech signal alone. The proposed scheme works in two stages: setting the visual password stage and the verification stage. At the setting stage the visual passwords system request the user to utter a selected password, a video recording of the user face is captured, and processed by a special words-based VSR system which extracts a sequence of feature vectors. In the verification stage, the same procedure is executed, the features will be sent to be compared with the stored visual password. The proposed scheme has been evaluated using a video database of 20 different speakers (10 females and 10 males), and 15 more males in another video database with different experiment sets. The evaluation has proved the system feasibility, with average error rate in the range of 7.63% to 20.51% at the worst tested scenario, and therefore, has potential to be a practical approach with the support of other conventional authentication methods such as the use of usernames and passwords.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑