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. 2018 Jul 5:2018:5296523.
doi: 10.1155/2018/5296523. eCollection 2018.

Emotion Recognition Based on Weighted Fusion Strategy of Multichannel Physiological Signals

Wei Wei  1 , Qingxuan Jia  1 , Yongli Feng  1 , Gang Chen  1
Affiliations

Emotion Recognition Based on Weighted Fusion Strategy of Multichannel Physiological Signals

Wei Wei et al. Comput Intell Neurosci. .

Abstract

Emotion recognition is an important pattern recognition problem that has inspired researchers for several areas. Various data from humans for emotion recognition have been developed, including visual, audio, and physiological signals data. This paper proposes a decision-level weight fusion strategy for emotion recognition in multichannel physiological signals. Firstly, we selected four kinds of physiological signals, including Electroencephalography (EEG), Electrocardiogram (ECG), Respiration Amplitude (RA), and Galvanic Skin Response (GSR). And various analysis domains have been used in physiological emotion features extraction. Secondly, we adopt feedback strategy for weight definition, according to recognition rate of each emotion of each physiological signal based on Support Vector Machine (SVM) classifier independently. Finally, we introduce weight in decision level by linear fusing weight matrix with classification result of each SVM classifier. The experiments on the MAHNOB-HCI database show the highest accuracy. The results also provide evidence and suggest a way for further developing a more specialized emotion recognition system based on multichannel data using weight fusion strategy.

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Figures

Figure 1
Figure 1
EEG electrode locations.
Figure 2
Figure 2
Typical structure of ECG signal.
Figure 3
Figure 3
Flow of weight fusion strategy.
Figure 4
Figure 4
Flow of the emotional recognition based multichannel physiological signal.
See this image and copyright information in PMC

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