Departmental Bulletin Paper 表面筋電位を用いた個人認証手法の検討
An Attempt of User Authentication Method Using Surface Electromyogram Signals

山場, 久昭  ,  長友, 想  ,  久保田, 真一郎  ,  岡崎, 直宣

44pp.259 - 262 , 2015-07-31 , 宮崎大学工学部
At the present time, mobile devices such as tablet-type PCs and smart phones have widely penetrated into our daily lives. Therefore, an authentication method that prevents shoulder surfing is needed. We are investigating a new user authentication method for mobile devices that uses surface electromyogram (s-EMG) signals, not screen touching. The s-EMG signals, which are generated by the electrical activity of muscle fibers during contraction, are detected over the skin surface. Muscle movement can be differentiated by analyzing the s-EMG. In this paper, a series of experiments was carried out to investigate the prospect of an authentication method using s-EMGs. Specifically, several gestures of the wrist were introduced, and the s-EMGs generated for each motion pattern were measured. We compared the s-EMG patterns generated by each subject with the patterns generated by other subjects. As a result, it was found that each subject has similar patterns that are different from those of other subjects. Thus, s-EMGs can be used to confirm one's identification for authenticating passwords on touchscreen devices.

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