並列摘要
Multi-touch technology is paid close attention to gradually in recent years, a variety of different techniques were applied to different products. Most of the technology concentrates on the touch panel of medium and small size, and the large size of touch screen is less concerned about the desktop, because the large size of touch screen desktop needs to build high-precision and wider application of the touch desktop, it must strengthen in hardware and software separately. This thesis uses diffused illumination (DI) technology. Based on this technique, the large size of touch screen will be built into a multi-touch table. This thesis overcame the problems encountered to build the hardware of multi-touch table, and perform the function of gesture recognition. The multi-touch table built in this thesis also integrated a number of application software, so that the flash-related files can be manipulated to achieve human-computer interaction interface.