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研究生:邱創源
研究生(外文):Chuang-Yuan Chiu
論文名稱:診斷捷泳打水姿勢之游泳專家系統
論文名稱(外文):Swimming Expert System for the Diagnosis of Flutter Kicks
指導教授:王輝清
學位類別:碩士
校院名稱:國立中興大學
系所名稱:應用數學系所
學門:數學及統計學門
學類:數學學類
論文種類:學術論文
畢業學年度:96
語文別:中文
論文頁數:44
中文關鍵詞:捷泳打水專家系統影像處理支持向量機多級分類系統
外文關鍵詞:Flutter KicksExpert SystemImage ProcessingSupport Vector MachinesMultiple classifier system
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本文建立了一套診斷捷泳打水姿勢的專家系統,利用電腦視覺中數位影像處理技術,圈選出選手在進行捷泳打水所產生的水花。並且藉由力學的觀點找出水花生成與動作的關係,以此定義出影像中的參數L、R、S,藉以分析選手的打水姿勢。
本專家系統是以一套多級分類系統所組成,其中包含三個支持向量機,根據教練的判斷以及34名選手的參數值作為專家系統訓練的依據。並且利用另外15名選手的資料驗證本專家系統。在實驗結果中,我們所提出的方法達到91.11%的正確率。
An expert system developed to diagnose the movements of flutter kicks by processing digital images of splash was presented in the paper. A generic digital camera was used to capture the swimmers’ kicking movements and splash. From aspects of mechanics, relations exist between splash shapes and movements of flutter kicks. To find features by digital image processing techniques from recorded digital files, many video frames are transformed for analysis of flutter kicks. L, R, and S are three features extracted from the splash shapes for evaluating the movements of the swimmers’ legs.
The expert system implemented the coach''s knowledge by training datasets with the features as inputs of a multiple classifier system composed of three support vector machines. One dataset involving 34 swimmers’ records is used for training the expert system. The other dataset involving 15 swimmers’ records is used to evaluate 91.11% accuracy of the expert system.
致謝 i
摘要 ii
Abstract iii
目錄 iv
表目錄 vii
圖目錄 viii
符號說明 xiii
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 1
1.3 文獻回顧 2
1.3.1 專家系統 2
1.3.2 游泳診斷 3
1.4 名詞解釋 5
1.5 本文架構 5
第二章 理論背景 6
2.1 捷泳打水動作與水花生成的關係 6
2.2 色彩空間及其轉換 8
2.2.1 RGB色彩空間 8
2.2.2 HSV色彩空間 9
2.2.3 RGB色彩空間與HSV色彩空間轉換 10
2.3 影像處理 11
2.3.1 Canny Edge Detection 11
2.3.2 Hough Transform 12
2.3.3 Connected Component Detection 14
2.4 分類系統 15
2.4.1 Fuzzy C-Means 15
2.4.2 Support Vector Machines 16
第三章 研究方法 18
3.1 受試對象 18
3.2 實驗器材架設方法及選手測試規則 18
3.3 實驗設計 20
3.4 影像處理 21
3.4.1 設定座標 22
3.4.2 圈選水花 24
3.4.3 數值化 27
3.5 診斷系統 29
第四章 實驗結果與討論 31
4.1 水花形狀與打水動作的關係 31
4.2 實驗結果 32
4.3 討論 35
4.4 誤判分析 37
第五章 結論及未來展望 38
5.1 結論 38
5.2 未來展望 38
參考文獻 39
附錄A(受試者須知及同意書) 42
附錄B(專業教練評分表) 43
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