本論文利用Kinect與微型投影機搭配影像處理之技術實現實際電腦之虛擬鍵盤與滑鼠以及掃描功能。虛擬鍵盤與滑鼠的實現是藉由投影機投射鍵盤與滑鼠畫面至桌面上,透過Kinect擷取使用者的手指彩色影像與深度資訊搭配影像處理技術,讓使用者在虛擬鍵盤與滑鼠上能夠如實體一般使用實體鍵盤及滑鼠之功能。掃描功能的實現是利用Kinect掃描使用者在投射畫面指定的兩點對角線所形成矩形區域之彩色影像,同時將掃描後的圖縮小,顯示在虛擬介面上,供使用者查看,使用者還可利用手指在虛擬介面之掃描圖像上點選並移動,即可將掃描圖檔做儲存、移除或者將點選的掃描圖像顯示在主畫面上。此掃描功能可隨手將書面之雜亂筆記電子化,不需再使用其餘攝影工具。;This study utilizes Kinect and micro-projector with image processing techniques to implement a virtual keyboard, a virtual mouse and a scanning function for a real computer. The implementation of a virtual keyboard and mouse is performed to project a virtual interface on the table by using the micro-projector and then Kinect captures the skin color and depth image of the user’s finger through image processing techniques such that the user can manipulate the virtual keyboard and mouse function as real devices. Regarding the scanning function, Kinect can capture the two points on the virtual interface by the user’s finger and the two points are as the diagonal points to form a rectangular area. Then the rectangular area can be scanned by Kinect. The scanned image size can be also reduced and displayed on the virtual interface for users. The user can use finger to click and move the scanned image to save, delete or show the scanned image on the real monitor. The scanning function can save anything on the virtual interface without other camera tools.