一种基于DSP的实时手势交互系统

摘要

A real-time hand gesture interactive recognition system based on DSP was presented in this paper. The prototype consisted of multi-channel wireless sensor modules, a signal processing module integrated with a fixedpoint DSP chip TMS320VC5502, and a gesture application module. Multi-channel wireless sensor modules can be worn directly on the body to collect and transmit sEMG and ACC signals related to gestures. The signal processing module was designed to receive and classify the gesture data. And the application module can translate hand gestures into control commands of domestic equipments. This system can recognize accurately 8 kinds of common gestures using 5 sE MG sensors and a 3D accelerometer, and the recognition rate reached 99.4％. The experimental results of real-time gesture-based infrared air conditioner remote control also demonstrated that the proposed DSPbased gesture interactive system has certain practical value.%设计了一种基于DSP的实时手势交互系统,该系统包含多通道无线传感器模块、信号接收及处理模块和手势应用模块.多通道无线传感器模块可直接穿戴于人体,采集并无线发送与手势动作有关的表面肌电(surface electromyography,sEMG)和加速度(Acceleration,ACC)信号,信号接收及处理模块无线接收数据并利用16位定点DSP芯片TMS320VC5502完成手势动作模式识别任务,手势应用模块将识别结果转换成家用电器设备的实际控制命令,以实现对家用电器的实时控制.本系统使用5通道表面肌电传感器和一个3D加速度传感器实现了8类常用手势动作的准确识别,识别率达到了99.4%.实时空调红外遥控实验结果表明,这种基于手势识别的实时控制系统具有一定的实用价值.