基于单目视觉追踪测量羽毛球空气阻力系数  

Measuring the Air Drag Coefficient of Badminton by Monocular Tracking

作　　者：胡海涛 张知行 姜颖 喻孜[1] HU Haitao;ZHANG Zhixing;JIANG Ying;YU Zi(College of Science,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学理学院,江苏南京210037

出　　处：《大学物理实验》2021年第4期25-28,共4页Physical Experiment of College

基　　金：南京林业大学教学质量提升工程项目。

摘　　要：针对羽毛球空气阻力系数难以测量的问题,提出了一种基于单目视觉追踪来测量羽毛球空气阻力系数的方法。使用摄像头对运动员击打羽毛球的过程进行拍摄,通过图像识别算法追踪视频中羽毛球的飞行轨迹获取羽毛球的即时速度,最后根据动力学规律分析得出羽毛球的空气阻力系数。该方法测量精度较高,测量过程简便,可推广用于测量其他飞行物体的空气阻力系数。A method based on monocular vision tracking is proposed to measure the air drag coefficient of badminton.The camera is used to shoot the process of players hitting badminton,and the image recognition algorithm is used to track the flight path of badminton in the video to get the instant speed of badminton.Finally,the air resistance coefficient of badminton is analyzed according to the dynamics law.This method has high measuring accuracy and simple measuring process,and can be extended to measure the air resistance coefficient of other flying objects.

关 键 词：图像识别 空气阻力系数 单目视觉追踪 

分 类 号：O4-34[理学—物理]