基于激光传感器的高精度运动姿态实时识别

Real-time motion attitude recognition based on the laser sensor

针对人体运动姿态识别误差大、耗时长的问题,提出基于激光传感器的高精度运动姿态实时识别方法。该方法利用光电探测器测量自混合干涉信号获取敏感元件位移信息;使用线性调制垂直腔面发射激光器提取自混合干涉信号内敏感元件位移调制相位差,重构位移曲线,获取加速度值;通过确定加速度值在敏感元件上的分量获取运动人体的下弯角和旋转角,实现高精度人体运动姿态实时识别。应用分析结果表明,该方法可准确识别出不同运行状态下的人体运动姿态,姿态识别误差较小,识别所需时间较短,经评估指标评价,具有良好运动姿态识别效果。

The research Aims at the problem of significant error and long time-consuming in human motion pose recognition;hence we propose a high-precision real-time recognition method based on a laser sensor.In this method,the photoelectric detector is used to measure the self-mixing interference signal to obtain the sensitive element’s displacement information.The linear modulation vertical-cavity surface-emitting laser is used to extract the phase difference of the displacement modulation of the sensitive element in the self-mixing interference signal,and the displacement curve is reconstructed to obtain the acceleration value.The downward bending angle and rotation angle of the moving human body are obtained by determining the sensitive element’s acceleration value component.Accurate realtime recognition of human motion posture.The application analysis results show that the method can accurately identify the human motion posture under different running states,the posture recognition error is small,the recognition time is short,and the evaluation index evaluation shows that the method has a good recognition effect.