脑电图
模式识别(心理学)
人工智能
计算机科学
支持向量机
判别式
特征选择
语音识别
面部识别系统
特征提取
微分熵
脑-机接口
心理学
雷诺熵
最大熵原理
神经科学
作者
Guoyang Liu,Yiming Wen,Janet H. Hsiao,Defei Zhang,Tian Lan,Weidong Zhou
出处
期刊:IEEE Transactions on Human-Machine Systems
[Institute of Electrical and Electronics Engineers]
日期:2024-02-01
卷期号:54 (1): 44-55
标识
DOI:10.1109/thms.2023.3332209
摘要
The face recognition of familiar and unfamiliar people is an essential part of our daily lives. However, its neural mechanism and relevant electroencephalography (EEG) features are still unclear. In this study, a new EEG-based familiar and unfamiliar faces classification method is proposed. We record the multichannel EEG with three different face-recall paradigms, and these EEG signals are temporally segmented and filtered using a well-designed filter-bank strategy. The filter-bank differential entropy is employed to extract discriminative features. Finally, the support vector machine (SVM) with Gaussian kernels serves as the robust classifier for EEG-based face recognition. In addition, the F-score is employed for feature ranking and selection, which helps to visualize the brain activation in time, frequency, and spatial domains, and contributes to revealing the neural mechanism of face recognition. With feature selection, the highest mean accuracy of 74.10% can be yielded in face-recall paradigms over ten subjects. Meanwhile, the analysis of results indicates that the EEG-based classification performance of face recognition will be significantly affected when subjects lie. The time–frequency topographical maps generated according to feature importance suggest that the delta band in the prefrontal region correlates to the face recognition task, and the brain response pattern varies from person to person. The present work demonstrates the feasibility of developing an efficient and interpretable brain–computer interface for EEG-based face recognition.
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