Microsoft has released the kinect in X-Box 360.It seems we do not need to use a controller to play a game. Keyboard and mouse are the traditional input devices. Can we use our hand as an input device? If we can do it this method canapply to some applications and replace thekeyboard. The user may feel much moreconvenient. The objective of the project is to finda new input method and apply on an application.The project develops a virtual piano which allowsthe user to use their hand to control the virtualpiano keyboard directly.

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