遠距手部復健系統之研究

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黃維信(Wei-Shin Huang) 查詢紙本館藏

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機械工程學系

論文名稱

遠距手部復健系統之研究

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摘要(中)

本研究期整合虛擬實境技術、醫學復健與網際網路通訊技術，建立一個遠距復健診療系統。利用個人電腦結合虛擬實境系統專用之數位資料手套，讓病人穿戴上數位資料手套或是其他輔助器材（如Dynamometer、Pinch Meter、Range of Motion）再依系統提示進行各項復健課程，操作資訊並將傳入個人電腦進行分析，再由復健醫師根據所得結果數據評估該復健程序的可行性及復原程度，此即為我們所稱的「手部診斷分析與復健電腦化系統」。
利用JTech公司的復健器材開發一套復健診療系統，透過RS-232傳輸界面可以自動讀取病人操作的數據，利用資料庫進行資料儲存，或透過網路將資料送給遠端的診療醫生，由圖形化的分析結果輔助醫生了解病人的復健進展。如果有需要可再透過遠距視訊系統，讓醫生與病人進行面對面直接的溝通，不但可以有效提昇復健成效，也可以大幅改善醫病關係。
利用3D/VR復健場景提供病人進行手部復健使用，在虛擬場景中將放置一個立體的模擬手掌，讓使用者穿戴上數位感應手套，透過數位手套的位移與彎曲操作，以控制虛擬手掌做出相同的動作，並且操作虛擬手掌進行模擬復健療程。為確保系統的實用性及穩定性，利用統計資料來進行系統驗證。驗證過程中設計不同的操作困難度，利用操作穩定次數、平均操作時間及碰撞次數等，來了解系統的可學習性並決定進行正式實驗前應提供使用者的練習次數，以降低因不了解系統操作而造成的操作錯誤與量測上的誤差。
在輔助提示之比較下，系統中準備了四種提示模式：無提示、純文字提示、純聲音提示及文字與聲音共存之提示，可以發現到聲音的提示效益最為明顯。完成系統開發及驗證後，與國內某大型教學醫院復健部合作進行臨床實驗，以證實系統的可重現性及再測信度。讓同一批受測者在第一次實驗後，間隔7-10天再進行第兩次同樣的實驗，收集實驗數據進行資料統計分析，透過不同的統計分析方式，的確可以證實系統的可重現性及再測信度，並依此做為將來實際應用之參考。但從實驗過程中發現，由電腦所繪製的場景與真實場景比較，會發現到較缺乏景深的立體感，尤其是圓柱較三角柱更為明顯。另外，實驗設備的穩定性及使用者臨場的表現也都會影響到實驗的結果，也就是實驗的可重現性及再測信度的程度。

摘要(英)

The present study is to assess the feasibility of virtual reality-based hand rehabilitation system. A personal computer, a tracker, and a dataglove are included in the system. Three-dimensional virtual environments are developed. Forty volunteers were recruited in a hand-eye coordination test, with three levels of difficulty and four feedback modes. Task time and collision frequency are used to evaluate the system. From the experimental results it can be concluded that the system reliability is acceptable and the system performance is good. The VR-based hand rehabilitation system is feasible for rehabilitation clinics.
Another experiment ten healthy, non-disabled right-handed adult volunteers were recruited. Each volunteer used a datagolove to insert three-dimensional virtual representations of a cylinder and a prism into the target holes. To verify the reliability of the tests, each subject was retested twice. For each trial, the root mean square(RMS) value of the hand movement trajectory was projected onto the X, Y and Z axes. This projection enabled us to measure the extent of the genuine, summative displacement of the manipulating hand. The reproducibility of the virtual reality assessment was analyzed using the intraclass correlation(ICC) approach. The total ICC values of 10subjects demonstrated a high task completion time and RMS on the X and Z axes for the transferring of the prism.

關鍵字(中)

★ 虛擬實境
★ 手部復健
★ 電腦圖學
★ 遠距診療

關鍵字(英)

論文目次

摘要 I
ABSTRACT III
誌謝 IV
總目錄 V
圖目錄 IX
表目錄 XI
第一章緒論 1
1-1 研究動機 1
1-2 研究目的 3
1-3 研究內容 4
1-4 研究方法 5
1-5 論文架構 7
第二章文獻回顧與相關理論研究 9
2-1 VR在醫學領域之相關研究 9
2-1-1 手術模擬器 9
2-1-2 護理訓練 10
2-1-3 復健診療 12
2-1-4 復健其他相關研究 17
2-2 網路在醫學領域之相關研究 18
2-2-1 網路醫院 18
2-2-2 遠距復健醫療 21
2-3 VR硬體之相關研究 27
2-3-1位置追蹤器 29
2-3-2數位資料手套 30
2-3-3 頭戴式顯示器 33
2-4虛擬實境軟體 35
2-4-1 VR專屬系統開發工具 35
2-4-2 VRML開發工具 40
2-5系統驗證 42
第三章遠距復健系統之開發 44
3-1 系統架構 44
3-2 復健診療系統 45
3-2-1 握力計 46
3-2-2 指力計 48
3-2-3 痛覺計 50
3-2-4 彎曲計 51
3-2-5 復健醫療管理系統 51
3-3 遠距視訊系統 55
3-3-1 系統架構 55
3-3-2 視訊系統 57
第四章手部診療系統開發與驗證 58
4-1 系統架構 59
4-2 系統設計與實驗規劃 59
4-2-1場景設計 60
4-2-2實驗規劃 61
4-2-3實驗分析方法 62
4-3系統驗證實驗 64
4-3-1實驗內容與實驗對象 64
4-3-2實驗設計 64
4-3-3實驗流程 65
4-3-4實驗記錄與結果分析 66
4-4輔助功能效果實驗 73
4-4-1實驗內容與實驗對象 74
4-4-2實驗設計 74
4-4-3實驗流程 76
4-4-4實驗記錄與結果分析 78
第五章 VR手部診療系統臨床應用 91
5-1系統架構 91
5-2系統設計與實驗規劃 92
5-2-1場景設計 92
5-2-2實驗內容與實驗對象 93
5-2-3實驗設計 94
5-2-4實驗流程 94
5-2-5實驗記錄與結果分析方法 96
5-3實驗結果分析與討論 97
第六章結論與未來研究方向 108
6-1結論 108
6-2未來研究方向 111
參考文獻 113
附錄A 實驗內容說明
附錄B 個人基本資料問卷
附錄C 實驗過程意見調查表
附錄D 實驗完成意見調查表
作者簡歷

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指導教授

董基良(Ji-Liang Doong)

審核日期

2002-7-18

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