透過您的圖書館登入
IP:3.138.179.119
  • 學位論文

以豪斯多夫距離演算法實現高爾夫球揮桿軌跡的追蹤與比對

GOLF SWING TRAJECTORY TRACKING AND MATCHING BY HAUSDORFF DISTANCE ALGORITHM

指導教授 : 蔡明傑
若您是本文的作者,可授權文章由華藝線上圖書館中協助推廣。

摘要


本篇論文提出一種強而有利的軌跡追蹤與比對系統,它是利用軌跡 模型來達到精確的功能,我們利用原始影片中高爾夫球的揮桿影像來追 蹤桿頭的2D 座標平面並抓取它的軌跡點,以教練的軌跡模型與初學者 作比對,對此軌跡模型的誤差值給予分數以及評語,進而讓初學者可以判 別揮桿的優劣。 本文主要分為兩個部分,一個是將高爾夫球的揮桿影像經過影像的 前處理,包含影像相減、型態學膨脹侵蝕、測邊法等方式先將影像做處 理可找到高爾夫球的桿頭。接著定義軌跡模型ρ(桿頭與圖像中心的距 離)、β(桿頭與圖像中心所形成的角度的)和時間序列的關係,將定義的 多項式函數找到對應係數與軌跡模型的關係,找出軌跡模型就可以將揮 桿的軌跡完整畫出。 另外一部分是做軌跡的比對;畫出軌跡模型並不是我們最終的目 的,必需將追蹤出來的軌跡點做基因遺傳演算法,找到最佳的適應函數 再用Hausdorff distance 找出兩軌跡的誤差值,做軌跡的比對動作並給予 分數,進而讓使用者了解揮桿的正確性。

並列摘要


This thesis presents a new visual tracking comparison technology that relies on the use of a trajectory model to achieve robustness. We purpose of retrieving the 2D spatiotemporal trajectory of a golf club head and get the trajectory pole from ordinary video sequences of golf swing, compare with coaches and an user give a score then judge good or bad. This thesis includes two main topics. The first is to determine the center of the moving object using image-processing technique, include "Image Subtraction" 、"Morphology Dilation and Erosion" 、"Contour Tracing",it use these theorem should be find the golf club from video image-processing,then we define the trajectory model ρ、β and time bounds relations,it found the corresponding coefficient and draw completely trajectory model base on polynomial function that we defined. The second is golf trajectory comparison. Draw the model is not final destination,it should be use the "Genetic algorithm" base on path pole to find the best model. Finally, using the Hausdorff distance to detect the magnitudes of error, base on this value give score and level to enhance their swing analysis.

參考文獻


[3] J. Canny, “A Computational Approach to Edge Detection,” IEEE
Transactions on Pattern Analysis and Machine Intelligence, pp.679–697, Nov. 1986.
[4] I. J. Cox, “A Review of Statistical Data Association Techniques for Motion Correspondence,” Int. J. of Computer Vision, pp.53–66, Nov.
[5] 陳信國,「即時影像追蹤在網路攝影機上的應用」,大同大學碩士論文,民國九十七年六月。
[7] 蔡銘城,「應用遺傳演算法改善自走車循線能力」,大同大學碩士論文,民國九十七年七月 。

延伸閱讀