本研究之目的，乃是分別探討使用紅外線攝影機與六軸電磁式動作擷取器擷取玩家動作軌跡，且應用於Virtools虛擬實境開發系統來實現擬真桌球互動系統。紅外線攝影機動作擷取器運用幾何光學模型搭配雙眼紅外線攝影機檢測物體之距離，探討及分析其非同步性問題並與電磁式感測器做比較，而六軸電磁式動作擷取器方面擷取接收器之位置與方位資料，用於擬真桌球系統之球拍即時定位且搭配Virtools開發環境之物理系統建構擬真桌球系統之完整互動性，讓使用者確切感受其真實性。擬真桌球互動系統中加入球路設計、練習模式與對打模式之遊戲策略，藉此使用者可於練習模式中訓練打擊，並於比賽模式中實際去體驗現實的桌球比賽之狀況。藉由以上諸項來實現一擬真桌球互動式系統，使用者根據揮拍之實際狀況去練習揮打桌球，並於比賽模式中得知練習後之熟練程度。

The purpose of the thesis is respectively to investigate which use the motion capture of Infrared Camera and six-coordinate electromagnetic sensor, and complete reality table tennis interaction system with the motion capture. Infrared Camera motion capture use geometrical optics to calculate object’s distance on two IR camera system, and analysis the asynchronous transmitter problem, and compare with six-coordinate electromagnetic sensor. In six-coordinate electromagnetic sensor, obtain the receiver’s position and angle data, to location the virtual racket position immediately, and build complete interaction of reality table tennis with Virtools Physics system, which let user feel factuality.
In reality table tennis interaction system, add ball’s trajectory、practice mode and competition mode of game strategy, player can practice strike in practice mode, or experience real table tennis competition in competition mode. According to above statement to realize Interaction System of Reality Table Tennis. Player practice strike ball according to wave the racket, and know how well in competition mode.

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