Journal
PROCEEDINGS OF THE 21ST 2022 INTERNATIONAL CONFERENCE OF THE BIOMETRICS SPECIAL INTEREST GROUP (BIOSIG 2022)
Volume P-329, Issue -, Pages -Publisher
IEEE
DOI: 10.1109/BIOSIG55365.2022.9897041
Keywords
EEG; Event-related potential; Wavelet transform; Imperceptible visual stimuli
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This study introduces individual-related stimulus to improve the verification performance based on biometric authentication. By using individual face image stimulation, higher evoked response was achieved. By using various time zones, the performance of eight subjects was verified with an equal error rate of 6.2%.
Person authentication using biometric information has become increasingly popular owing to the fact that continuous authentication is required in most user management systems. This study introduces an individual-related stimulus, instead of common stimuli, to improve the verification performance based on biometric authentication using brain waves evoked by imperceptible visual stimulation. Imperceptible visual stimulation is considered over visual stimulation to overcome obstacles that a user may face when using a system. Compared with previous studies that used circular figures as common stimuli, herein, we ensured a higher evoked response by using individual face image stimulation. Imperceptible stimuli were confirmed by changing the image intensity and presenting a high-speed stimulation. Individual imperceptible face image stimulation confirmed that the following event-related potential (ERP) components: N 170, N 250, and N 400 were obtained. Furthermore, by using various time zones, including the ERP components as features, we verified the performance of eight subjects and achieved an equal error rate (EER) of 6.2 %.
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