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

易语言图像跟踪算法源码例程程序调用第三方tracker.dll文件接口，实现高效实时图像目标跟踪算法。 -Easy language image tracking algorithm source routine procedures call the third party tracker.dll file interface to achieve efficient real-time image target tracking algorithm.