EEG-Based Biometry in Outdoor Environment toward the Operation of a Portable BMI System

-A Study with Small Number of People during Standing or Ambulatory Condition-

Abstract

In this paper, based on the dissemination of the portable brain machine interface, the personal authentication is investigated by using EEG signals during auditory stimulations in outdoor environment. Seven healthy subjects participated in this experiment and both rare and frequent auditory stimulations were presented using oddball paradigm in indoor and outdoor environment. The event related potentials were observed in target stimulations, whereas not observed in standard stimulations. By applying machine learning technique the personal authentication rate is derived and the feasibility of outdoor EEG-based personal authentication is discussed.