Saccadic trajectory-based identity authentication

• Published in: Multimedia tools and applications Vol. 79; no. 7-8; pp. 4891 - 4905
• Main Authors: Shao, Huiru, Li, Jing, Wan, Wenbo, Zhang, Huaxiang, Sun, Jiande
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.02.2020; Springer Nature B.V
• Subjects: Brain; Computer Communication Networks; Computer Science; Cybersecurity; Data Structures and Information Theory; Eye (anatomy); Eye movements; Feature extraction; Multimedia Information Systems; Muscles; Reproducibility; Special Purpose and Application-Based Systems; Trajectories; Wavelet transforms; Features selection; Saccadic trajectory; Identity authentication; Wavelet packet transform
• ISSN: 1380-7501; 1573-7721
• DOI: 10.1007/s11042-018-6816-5

The saccadic trajectory is generated by extra-ocular muscles in the eyes, which is a complex mechanism related to brain-driven neural signal. The saccadic trajectory has the characteristics of non-reproducibility and non-contact. In this paper, we propose a saccadic trajectory-based identity authentication method considering that saccadic trajectory can be used as a behavior-based biometric. In this method, we adopt Velocity-Threshold (I-VT) algorithm to extract saccadic trajectories from the whole eye movement data, extract features via wavelet packet transform and authenticate the identity via classifying these features by SVM. In this paper, we verify the proposed method on EMDBv1.0 dataset for horizontal eye movements. We select one subject to be the host and randomly choose another 50 subjects from the remaining 58 subjects as the attackers. We achieve the best performance via optimizing feature selection and the parameter of SVM. The experiment results show that the average accuracy for accepting the host can reach 98.09%, and the average accuracy for rejecting the attackers can reach 99.55%. It demonstrates that the saccadic trajectory-based identity authentication is promising in information security.