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研究生: 辜炳翰
Bing-Han Ku
論文名稱: 輪型機械人結合三維影像之自動追蹤與運動控制
Automatic Tracking and Control of a Wheel-Robot Combining 3D Image
指導教授: 陳建祥
Jian-Shiang Chen
口試委員:
學位類別: 碩士
Master
系所名稱: 工學院 - 動力機械工程學系
Department of Power Mechanical Engineering
論文出版年: 2008
畢業學年度: 96
語文別: 中文
論文頁數: 76
中文關鍵詞: 三維影像雷射尋標器輪型機械人
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  • 本文的目的在設計並實現ㄧ部具有三維立體視覺的影像伺服控制之輪型機器人,以筆記型電腦為基本平台,搭配影像前處理,以兩台攝影機重建3D立體視覺,輔以雷射尋標器擷取附近環境資訊,建構出一即時立體影像追蹤系統。目標物追蹤主要是採用雙眼立體視覺架構取出成對影像,將影像處理後,再將雙影像中的特徵點以光流追蹤法來取得其世界座標,藉此取得深度資訊,依此深度資訊來達到追蹤的目的。
    實驗主要分成三個部分:第一個部分為『目標物縱向追蹤』,目的在使雙攝影機能確實的將目標物的特徵點與機器人的深度算出,並同時間校正,與雷射尋標器互相比對,並將深度資訊送入控制器中控制馬達使機械人與目標物距離鎖定在預設距離中,以達到追蹤效果。第二個部分是『目標物橫向追蹤』,此時需測量目標物橫向的位置座標,藉此位置座標將目標物鎖定在影像中心,進行追蹤。最後將第一部分與第二部分合併,先以雙攝影機模組鎖定目標物,並前進至目標物前方預設距離後,自動切換成雷射模組進行最小值追蹤。


    目錄 摘要 i Abstract ii 目錄 iii 圖目錄 vi 表目錄 ix 摘要 i Abstract ii 目錄 iii 圖目錄 vi 表目錄 ix 第一章 緒論 1 1-1研究背景與動機 1 1-2文獻回顧 2 1-3欲達成目標的情境描述 4 1-4 本文架構 7 第二章 系統概述 8 2-1緒論 8 2-2輪型機械人運動控制 10 2-2-1輪型機械人動態方程式推導[25] 10 2-2-2 PID控制法則[6][26] 15 2-2-3 運動控制器設計 16 2-3追蹤系統架構 18 2-4 雷射追蹤系統 20 2-4-1 雷射追蹤系統法則與架構 20 2-4-2 雷射環境資訊抓取[27] 22 2-5 影像追蹤系統 25 2-5-1 影像追蹤系統架構 25 2-5-2 影像追蹤系統法則 26 2-5-3 立體影像處理 27 2-5-4 立體深度[2] 28 第三章 實驗系統架構 31 3-1硬體架構 31 3-1-1 輪型機器人硬體架構[1] 33 3-1-2 聲納感測系統 35 3-1-3 雷射模組硬體架構 36 3-1-4 攝影機模組硬體架構 38 3-2軟體介面 39 3-2-1 攝影機模組軟體介面 39 3-2-2輪型機器人控制系統架構 39 第四章 實驗結果與討論 42 4-1動態模擬 42 4-2雙攝影機模組追蹤系統 44 4-2-1攝影機模組參數校正 (Camera Calibration)[11] 44 4-2-2攝影機模組特徵點追蹤(Feature Tracking)[14] 45 4-2-3 聲納防撞系統 46 4-2-4縱向追蹤實驗(Longitudinal Tracking) 48 4-2-5橫向追蹤實驗(Lateral Tracking) 52 4-2-6鎖定目標點追蹤實驗 53 4-3雷射模組追蹤系統 56 4-3-1 雷射模組實驗 56 4-3-2 目標最小值追蹤實驗 59 4-3-3障礙物後方與橫向移動目標追蹤 61 4-4 自動鎖定目標物最小值追蹤實驗 64 4-4-1自動鎖定目標物實驗 64 4-4-2追蹤實驗 66 4-5 討論 68 第五章 本文貢獻與未來發展與建議 69 5-1 本文貢獻 69 5-2 未來發展與建議 69 參考文獻 71 APPENDIX 75

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