系統識別號 U0026-0812200915312961
論文名稱(中文) 以使用多重生理訊號作為情緒辨識系統的發展
論文名稱(英文) Development of Emotion Recognition System Using Multiple Physiological Signals
校院名稱 成功大學
系所名稱(中) 醫學工程研究所碩博士班
系所名稱(英) Institute of Biomedical Engineering
學年度 97
學期 2
出版年 98
研究生(中文) 陳郁昇
研究生(英文) Yu-Shan Chen
電子信箱 p8696408@mail.ncku.edu.tw
學號 P8696408
學位類別 碩士
語文別 英文
論文頁數 80頁
口試委員 口試委員-施東河
中文關鍵字 支援向量機  情緒辨識  多重生理訊號  統計分析 
英文關鍵字 Multiple physiological signals  Statistical analysis  Emotion recognition  Support vector machines 
中文摘要 在人機介面互動方面,透過使用者的情緒與認知表現來瞭解其感受以便回饋是相當重要的研究課題,本論文研究目的主要在於使用多重生理訊號來發展情緒辨識系統;本研究首先建構受測者獨立操作之測量與分析系統,然後建立受測者情緒認知相關多重生理訊號資料庫,其中輸入訊號包含應用非侵入式穿戴裝置,可以經由身體表面擷取與自律神經相關之影響情緒的反射訊號。情緒辨識實驗應用國際情感圖庫系統(IAPS, International Affective Picture System)誘發三十位受試者好笑、愉悅、噁心、害怕等四類情緒表現,同時利用生理訊號感測器量測與記錄末梢血流量、肌電圖、心電圖、膚電反應及體表溫度等生理訊號。所記錄之多重生理訊號經過正規化、生理參數擷取及特徵值選取過程後,將19個生理參數輸入支援向量機(SVM , Support vector machines)分類器進行分類,以達到辨識情緒的目的。從研究結果顯示,利用國際情感圖庫系統作為影片刺激,以成對T檢定為特徵值選取,其辨識率分別為76.2%、66.7%、71.4%、69%;另一方面以變異數分析為特徵值選取,分類辨識率則為82.9%、71.4%、81.4%、78.6%。本研究最後對於研究情緒辨識時所碰到的難題加以討論,並對未來進行受測者情緒辨識系統的研究提供方向與策略。
英文摘要 In multimodal human-computer interaction, to understand emotion and cognition expression of users for feedback control is an important issue. The purpose of this study is to develop emotion recognition system using multiple physiological signals. In this study, a stand-alone measurement and analysis system for subject operation is firstly constructed, and then an emotion related multiple physiological signals database is built. In which, the input signals that may reflect the autonomic nervous system associated with influence of emotion are acquired using non-invasive and wearable devices from the body surface. The IAPS (International Affective Picture System) is employed to elicit the affective responses of happiness, pleasure, disgust, and fear from thirty healthy subjects. The multiple physiological signals including photoplethysmography, electromyography, electrocardiogram, galvanic skin response, and skin temperature signal are measured and recorded simultaneously. After signal normalization, signal preprocessing, feature extraction, and feature selection, nineteen parameters are input to the support vector machine classifier for the corresponding emotional response classification. From the experimental results of using IAPS to elicit the emotion, it is shown that the accuracies of emotion recognition rate are 76.2%, 66.7%, 71.4%, and 69% based on the t-test, and are 82.9%, 71.4%, 81.4%, and 78.6% based on the ANOVA. Finally, the difficulties associated with the investigation of emotion recognition system are discussed, and the future direction and research suggestions are also provided.

Chapter 1 Introduction 1
1.1 Background 1
1.2 Understanding Emotion 2
1.2.1 What is Emotion 2
1.2.2 Autonomic Nervous System Corresponds to Emotion 3
1.2.3 Physiological Differentiation of Emotions 5
1.3 Literature Review 7
1.4 Motivation and Purpose 9
1.5 The Organization of the Thesis 9

Chapter 2 Materials and Methods 10
2.1 Research Framework 10
2.2 Physiological Signal Development 12
2.2.1 PPG Measuring Device 12
2.2.2 EMG Measuring Device 12
2.2.3 ECG Measuring Device 14
2.2.4 GSR Measuring Device 15
2.2.5 Skin Temperature Measuring Device 16
2.2.6 Multiple Physiological Signals Measuring Device 17
2.2.7 Affective Films of the Stimulation 17
2.3 Parameters Analysis 19
2.3.1 Multiple Physiological Signals Measurement 19
2.3.2 Physiological Parameter 20
2.3.3 Graphical User Interface 27
2.3.4 Empirical Mode Decomposition 29
2.4 Experimental Design 34
2.4.1 Experimental Procedure 34
2.4.2 Subject Selection 36
2.4.3 Task 37
2.5 Statistical Analysis 38
2.5.1 Paired T-test 39
2.5.2 Analysis of Variance 42
2.6 Classification 47
2.6.1 Support Vector Machines 47
2.6.2 Kernel Function 48
2.6.3 Proposed Procedure 49
2.6.4 Cross-Validation 50

Chapter 3 Experimental Results 51
3.1 System Testing 51
3.2 Statistical Analysis of Physiological Parameters 54
3.3 Emotion Recognition 64

Chapter 4 Discussion and Conclusion 69
4.1 Discussion 69
4.2 Conclusion and Prospects 73
References 75
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