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研究生:李欣儒
研究生(外文):Hsin-Ru Lee
論文名稱:結合黎曼幾何特徵與共同空間型樣法於腦波多類別想像運動分類
論文名稱(外文):Classification of Multiclass Motor Imagery EEG Using CSP and Riemannian Geometry Methods
指導教授:徐國鎧
學位類別:碩士
校院名稱:國立中央大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2020
畢業學年度:108
語文別:中文
論文頁數:94
中文關鍵詞:腦電圖想像運動共同空間型樣法聯合近似對角化濾波器組黎曼幾何
外文關鍵詞:ElectroencephalographicMotor ImageryCommon Spatial PatternJoint Approximate DiagonalizationFilter BankRiemannian Geometry
相關次數:
  • 被引用被引用:0
  • 點閱點閱:104
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摘要 ........................................................................................................................ I
Abstract ................................................................................................................ II
致謝 ..................................................................................................................... III
目錄 ..................................................................................................................... IV
圖目錄 ................................................................................................................ VII
表目錄 ................................................................................................................ XII
第一章 緒論 ......................................................................................................... 1
1-1 前言 ........................................................................................................ 1
1-2 研究動機與目的 ................................................................................... 2
1-3 文獻回顧與探討 ................................................................................... 3
1-4 內容大綱 ................................................................................................ 5
第二章 腦電訊號 ................................................................................................. 6
2-1 腦機介面 ................................................................................................ 6
2-2 想像運動 ................................................................................................ 7
2-3 腦電圖訊號量測之硬體規格 ............................................................... 9
第三章 演算法原理與分析 ............................................................................... 10
3-1 帶通濾波器之頻帶選擇 ..................................................................... 10
3-2 共同空間型樣法 ................................................................................. 11
3-3 黎曼幾何與黎曼流形基礎 ................................................................. 17
3-3-1 歐氏空間與黎曼空間 .............................................................. 17
3-3-2 腦電圖訊號之黎曼幾何特性 .................................................. 17
3-3-3 黎曼距離 .................................................................................. 19
3-3-4 黎曼對數/指數投影 ................................................................. 22
3-3-5 黎曼均值 .................................................................................. 25
3-3-6 黎曼切線空間投影 .................................................................. 26
3-4 基於濾波器組共同空間型樣法之切線空間投影 ............................. 29
3-4-1 重疊頻帶之帶通濾波器組 ...................................................... 30
3-4-2 多類別共同空間型樣法 .......................................................... 32
3-4-3 特徵結合 .................................................................................. 40
3-4-4 特徵選取及分類 ...................................................................... 41
第四章 實驗結果與討論 ................................................................................... 43
4-1 實驗數據分析...................................................................................... 43
4-1-1 BCI Competition IV Dataset IIa ................................................ 43
4-1-2 自行錄製之想像運動腦電圖數據 .......................................... 45
4-2 擴展共同空間型樣法至多類別分類之方法比較 ............................. 46
4-3 FBCSP-TSM 演算法參數之選擇 ........................................................ 48
4-3-1 共同空間型樣法之空間濾波器參數比較 .............................. 48
4-3-2 帶通濾波器組之頻帶數量 ...................................................... 49
4-3-3 帶通濾波器組頻帶重疊之頻寬大小 ...................................... 51
4-4 特徵選取之實驗結果 ......................................................................... 52
4-5 多類別想像運動腦電圖訊號之實驗結果 ......................................... 60
第五章 結論與未來展望 ................................................................................... 72
參考文獻 ............................................................................................................. 73
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