【摘要】 为了对篮球运动过程中的轨迹进行精确、自动化记录与分析，辅助篮球运动员优化技术动作，采用视频分析技术，设计篮球运动轨迹精准自动化捕捉系统。该系统通过设计的视频采集卡连接Panasonic AW-HE13型号摄像机，利用视频采集卡控制摄像机采集篮球运动视频图像，以该视频图像为基础，使用视频分析技术中的帧间差分方法和粗糙熵相结合的方式，检测篮球运动视频图像中的篮球目标后，通过视频分析技术中的边缘轮廓特征提取和拟合方式，实现篮球运动轨迹捕捉。实验结果表明，该系统采集的篮球运动视频图像较为清晰，在遮挡程度小于9%时，文中系统在篮球运动视频图像内检测到篮球目标的概率均为1，应用效果较为显著。更多还原

【Abstract】 In order to accurately and automatically record and analyze of basketball trajectory and assist basketball players to optimize technical movements,a precise and automatic capture system of basketball trajectory is designed by using video analysis technology. The system connects Panasonic AW-HE13 camera with the designed video capture card,and controls the camera to capture the basketball video image. Based on this video image,the basketball target in the basketball video image is detected by combining the frame difference method and rough entropy in video analysis technology,and then the edge contour feature extraction and fitting method in video analysis technology are used to capture the basketball trajectory. The experimental results show that the basketball video images collected by the system are relatively clear. Before the occlusion degree is 9%,the probability of the basketball target detected by the system in this paper is 1,and the application effect is remarkable.更多还原