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

利用sift算法，对运动图像进行运动轨迹的识别，先进行高速模糊，背景相减，在进行特征提取-Sift algorithm, the identification of trajectories of moving images, the first high-speed blur, background subtraction, during the feature extraction