A matlab for detecting events in a soccer game video. Used covariance tracking to recognize ball. Used color-based segmentation to recognize players. Based on curvature of the ball trajectories and the position relationship between players, events ar

协方差跟踪，将视频变成帧读入，计算协方差矩阵，并通过遍历找到最相似点区域进行跟踪，并生成轨迹-The covariance tracking, the video frame into read, calculate the covariance matrix, and find the similarities by traversing the area for tracking, trajectory generation and