论文部分内容阅读
为对抛射物体的运动进行分析 ,克服使用高速录像并逐帧分析像片图像的方法需要较长的后期分析时间 ,不便于对结果进行自动快速分析的缺点 ,论文基于抛射物体的运动学规律 ,通过在抛射曲线上的两个固定点的高度和跨越时间的检测 ,获得了抛射物的初始角度和初始速度。对高度和时间的检测 ,采用了线阵电荷耦合器件 (CCD)为图像传感器进行摄像并采用图像减影的方法识别抛射物体。在对系统进行静态标定的基础上 ,在抛射架上进行了抛射实验检测。用该文提供的方法和用录像检测方法对不同条件下的初始发射角和初速度进行检测 ,二者数据符合得很好
In order to analyze the motion of the projectile and overcome the shortcomings of using high-speed video and analyzing the frame images frame by frame, it takes a long time for post-analysis and does not facilitate the automatic and rapid analysis of the results. Based on the kinematics of the projectile, The initial angle and initial velocity of the projectile were obtained by detecting the height of the two fixed points and the spanning time on the projection curve. For the detection of height and time, linear array charge-coupled device (CCD) was used to image the image sensor and image projection was used to identify the projectile. Based on the static calibration of the system, a projectile experiment was performed on the projectile. Using the method provided in this paper and using video detection method to detect the initial emission angle and initial velocity under different conditions, the two data are in good agreement