说明：  详细介绍了KPF(核粒子滤波)算法在视觉目标跟踪中的应用，并与标准的PF进行比较，能得到更好的估计值，鲁棒性也较好。
(Details of KPF (nuclear particle filter) algorithm in the visual target tracking application, and the PF with the standard for comparison, can get better estimates, robustness is also good.)