Make a point move in the 2D plane State = (x y xdot ydot). We only observe (x y). This code was used to generate Figure 17.9 of "Artificial Intelligence: a Modern Approach", Russell and Norvig, 2nd edition, Prentice Hall, in preparation.-

Lucas-Kanade 跟踪算法，此算法实现了经典Lk跟踪，详细算法参见文章 An Iterative Image Registration Technique with an Application to Stereo Vision (IJCAI), B.D. Lucas and T. Kanade, 7th International Joint Conference on Artificial Intelligence (IJCAI), April, 1981, pp. 674-67