基于光电成像技术的运动员垂直弹跳高度测试

Measurement of Vertical Bounce Height of Athletes Based on Optoelectronic Imaging Technology

针对运动员弹跳过程持续时间短,弹跳位置相对不固定,弹跳高度测试操作复杂的问题,提出一种基于线阵光电成像技术的运动员垂直弹跳高度测试方法;首先构建大视场垂直弹跳高度测试系统,线阵CCD相机进行实时获取,得到目标弹跳轨迹图像;然后对目标弹跳轨迹图像进行图像分析和处理,高精度提取弹跳特征点,从而获得运动员垂直弹跳的运动时间;最后依据运动学公式,实现运动员垂直弹跳高度的准确测试;进行多组实验并分析实验数据,结果表明在1500 mm的弹跳测试范围内,实验相对误差范围在3%以内,证明了该方法的可行性。

Aiming at the problems of short duration in athletes'jumping process,relatively unstable jumping position and complicated operation in jumping height test,a vertical jumping height test method for athletes based on linear photoelectric imaging technology is proposed.Firstly,a large field of view vertical bounce height test system is constructed,and the real-time bounce trajectory image of the target is obtained by the linear CCD camera.Then,the image of the target bouncing trajectory is analyzed and processed,and the bouncing feature points are extracted with high precision to obtain the movement time of the athlete's vertical bouncing;Finally,the accurate test of athletes'vertical bounce height is realized by the kinematics formula.Several groups of experiments are carried out,and the experimental data are analyzed.The results show that the relative error of the experiment is within 3%in the bounce test range of 1500 mm,which proves the feasibility of this method.