Person Verification Using Intra-Palm Propagation Signals with A New Phase Spectrum

In recent years, biometrics such as fingerprints and iris scans has been used in authentication. However, conventional biometrics is vulnerable to identity theft, especially in user management systems. As a new biometric without this vulnerability, we focused on intra-palm propagation signals, which are not exposed on a body surface. An intra-palm propagation signal is a signal that propagates between two pairs of electrodes, which are on the transmitter and receiver sides on a palm. When current passes between the electrodes on the transmitter side, the leakage electric field is generated. On the receiver side, this electric field is detected as a voltage change and regarded as an intra-palm propagation signal. In this paper, a new feature based on a phase spectrum of an intra-palm propagation signal is proposed, and its performance for verifying individuals is examined by the evaluation.