Title
Emotion recognition based on convolutional neural networks and heterogeneous bio-signal data sources
Abstract
Emotion recognition is a crucial application in human–computer interaction. It is usually conducted using facial expressions as the main modality, which might not be reliable. In this study, we proposed a multimodal approach that uses 2-channel electroencephalography (EEG) signals and eye modality in addition to the face modality to enhance the recognition performance. We also studied the use of facial images versus facial depth as the face modality and adapted the common arousal–valence model of emotions and the convolutional neural network, which can model the spatiotemporal information from the modality data for emotion recognition. Extensive experiments were conducted on the modality and emotion data, the results of which showed that our system has high accuracies of 67.8% and 77.0% in valence recognition and arousal recognition, respectively. The proposed method outperformed most state-of-the-art systems that use similar but fewer modalities. Moreover, the use of facial depth has outperformed the use of facial images. The proposed method of emotion recognition has significant potential for integration into various educational applications.
Year
DOI
Venue
2022
10.1016/j.inffus.2021.07.007
Information Fusion
Keywords
DocType
Volume
Emotion recognition,Electroencephalogram,Arousal–valence model of emotions,3D convolutional neural network
Journal
77
ISSN
Citations 
PageRank 
1566-2535
1
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Wang Kay Ngai110.34
Haoran Xie245071.21
Di Zou33812.11
Kee-Lee Chou410.34