互動式指揮系統為重造指揮環境的虛擬實境技術，進而提供使用者音樂上的體驗。系統設計的初衷是以一般人皆能使用為目標，因此無經驗的使用者也能夠輕易地享受指揮帶來的樂趣，而不再受限於人力物力上的條件。
本研究藉由擷取指揮者手部軌跡資料，辨識指揮者的手勢，並找出相對應的節拍來控制音樂表達的方式。同時，會綜述辨識指揮手勢的演算法，分析並比較其優缺點。由於指揮動作軌跡資料具有巨量，連續，且多維的性質，我們引用資料串流的觀念以有效率的方式處理，這個方法能幫助系統即時的分析且回應,
並能夠從指揮手勢上取得正確的節拍值。

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