Journal
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
Volume 17, Issue 4, Pages 2641-2652Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2020.3001612
Keywords
Biometrics; high-density surface electromyogram (sEMG); machine learning; neuromuscular password; user authentication
Categories
Funding
- National Key R&D Program of China [2017YFE0112000]
- Shanghai Pujiang Program [19PJ1401100]
- Shanghai Municipal Science and Technology Major Project [2017SHZDZX01, TII-20-1930]
- EPSRC [EP/N020774/1, EP/P009824/1] Funding Source: UKRI
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This article introduces a novel user authentication method based on neuromuscular passwords, using isometric contraction of finger muscles and neuromuscular biometrics for password entry and authentication. The proposed method demonstrates high accuracy in preventing incorrect inputs and impostors.
In this article, we propose a novel neuromuscular password-based user authentication method. The method consists of two parts: surface electromyogram (sEMG) based finger muscle isometric contraction password (FMICP) and neuromuscular biometrics. FMICP can be entered through isometric contraction of different finger muscles in a prescribed order without actual finger movement, which makes it difficult for observers to obtain the password. In our study, the isometric contraction patterns of different finger muscles were recognized through high-density sEMG signals acquired from the right dorsal hand. Moreover, both time-frequency-space domain features at macroscopic level (interference-pattern EMG) and motor neuron firing rate features at microscopic level (via decomposition) were extracted to represent neuromuscular biometrics, serving as a second defense. The FMICP and macro-micro neuromuscular biometrics together form a neuromuscular password. The proposed neuromuscular password achieved an equal error rate (EER) of 0.0128 when impostors entered a wrong FMICP. Even when impostors entered the correct FMICP, the neuromuscular biometrics, as the second defense, inhibited impostors with an EER of 0.1496. To the best of our knowledge, this is the first study to use individually unique neuromuscular information during unobservable muscle isometric contractions for user authentication, with training and testing data acquired on different days.
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