获取视频,使用背景减差法来检测出运动目标,为了得到目标的主轴方向,提出了边缘梯度法。实验证明,该方法效果明显。使用EKF和UKF来对目标进行跟踪。将跟踪结果和目标检测结果进行了比较,说明了不同滤波跟踪方法的效用。-Access to video, use the background subtraction method to detect moving targets, targets in order to get the main axis direction of the edge gradient method proposed. Experiments show that the method is effective. Using the EKF and UKF to track the target. Will track the results and objectives of the test results were compared to illustrate the effectiveness of different methods of filtering track.