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Biometric Identity Verification Using Intra-Body Propagation Signal
Yasuhiro YORIKANE,Yuji NISHIO,Isao NAKANISHI,Yoshio ITOH,Yutaka FUKUI 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
We propose to utilize an electromagnetic wave through a human body as biometrics. The electromagnetic wave (intra-body propagation signal) is generated at a relatively shallow depth in the human body through a pair of electrodes pasted on the human skin. The transfer characteristic of the intra-body propagation signal in each individual human being is different from those of others because human tissue characteristics vary widely. By using such a difference, it is expected to authenticate personal identification. In addition, liveness detection can be realized using the intra-body propagation signal. It is effective on preventing the disguise using artificial bodies. In this paper, we examined the individual feature in the intra-body propagation signal based on the spectrum analysis. We obtained a verification rate of 58% using the similarity in power spectrum especially in the 30-60 ㎒ sub-band.