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運動技術分析專題研究 PowerPoint PPT Presentation


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運動技術分析專題研究. 三度空間動作攝影分析原理. 三度空間動作分析. 科技的進步可以達成立體空間的評量與記錄 平面式的影片分析無法提供足夠的精確分析與實際需要 任意位置擺放的三度空間影片分析方法 (DLT 與 PPLT) 直接線性轉換 (Direct Linear Transformation) 空間三軸轉換 (Parallel and Perpendicular Lines Transformation). 直接線性轉換 (DLT). 線性轉換是三度空間動作攝影分析的方法之一 由於 DLT 對於攝影機的位置沒有特別的限制,因此對於動作分析過程的簡化極有幫助

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運動技術分析專題研究

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  • (DLTPPLT)

  • (Direct Linear Transformation)

  • (Parallel and Perpendicular Lines Transformation)


(DLT)

  • DLT


(X,Y)*T=(U,V)

(DLT)


(X,Y,Z)*T=(U,V,0)

(DLT)


(DLT)


(Homogeneity coordinate system)

N+1N

(X,Y,H)*T=(U,V,H)

(DLT)


(DLT)


3*3

1*3

3*1

(DLT)


100

44.1,37.6

55.1,30.7

45.0,26.7

34.7,32.6

44.3,25.6

55.0,19.7

45.1,15.8

34.4,20.8

(DLT)


100

42.3,39.2

32.0,25.3

21.8,31.8

31.4,35.9

42.0,18.3

31.9,14.5

21.7,19.8

31.2,24.2

(DLT)


Tij(control point)

(X,Y,Z)(U,V)(Least Squares Solution)(T441)

(DLT)


TijUVXYZ

XYZ

Tij

(DLT)


(DLT)

  • 0.145750612020493 -0.109623640775681

  • -0.075732171535492 -0.029966562986374

  • -0.006738346070051 0.020821949467063

  • 44.318553924560547 43.243774414062500

  • -0.043700449168682 -0.067349992692471

  • -0.030045837163925 0.123459637165070

  • -0.124817967414856 -0.144158586859703

  • 37.579090118408203 35.754795074462891

  • 0.000727529637516 0.000265563343419

  • 0.000639329373371 0.003031755797565

  • -0.000144414909300 0.000719638366718


(DLT)


(DLT)


(DLT)


16

(DLT)


(PPL)


(PPL)


15

(PPL)


(PPL)

  • PPL


[email protected]

http://www.epsport.idv.tw/epsport/


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