In order to enable TV tracking system to resist external interference when operating automatically

a second order accuracy scheme is proposed to automatically extract and fast track the moving targets. First

a double frame-difference method is presented to obtain the initial template of the input video image combined with the double gate approach of the quartered images. Then

we track the object effectively according to a trajectory prediction operator and adaptive feature matching technique. In a TV tracking system

the algorithm proposed in this paper has been applied in experiments of low-altitude flying targets tracking

which have achieved good tracking results. The results of the experiments show that the proposed method not only meets the real-time target tracking

but also can effectively improve the accuracy of the target identification.