A personal authentication system based on pinna related transfer function

摘要

In the personal authentication using acoustic properties of ear canal (pinna related transfer function) by previous study, the high authentication rate was obtained in the case of using the earphone and the headphone. On the other hand, in the case of using mobile phone, which does not cover the outer ear or canal, the authentication rate is lower than that of other devices. However, the mobile phone does not require any other equipment for measuring acoustic properties because micro speaker and microphone are built in. This is an important point for the highly convenient authentication system using the pinna related transfer function. In this paper, the authors investigate authentication rate using the pinna related transfer function measured by the mobile phone.