一个简单易懂的扩展卡尔曼程序，跟踪的是一个二维空间的非线性运动目标-An easy-to-understand program extended Kalman tracking is a two-dimensional nonlinear moving target

此方法为kalman视频跟踪，可以实现运动物体的检测及跟踪-This method for the Kalman video tracking, can realize the detection and tracking of moving object