末敏弹图像序列中跑道线目标的跟踪方法研究

提出了一种在末敏弹稳态下落过程中利用Hough变换将机场跑道线目标转化为对点目标的跟踪方法。考虑在各个参数解耦的情况下,对Hough平面内的直线参数利用卡尔曼滤波方法进行了状态估计与预测。在确定子弹与跑道目标的相对位置关系时,考虑到弹上探测器旋转运动的影响,结合当前帧图像的数据信息对预测方程进行修正处理,并给出了跟踪方法的详细步骤。跟踪数据分析表明,此方法实时性强,降低了参与运算的数据量,试验结果误差较小,满足目标总体设计要求。

Tracking method for the runway in image sequences of terminal-sensitive projectiles

A new method of some linear objects tracking such as the runway being changed to tracking of the feature point is presented based on Hough transform during the stable-falling of the sub-muniton.Given all the case of all parameters' decoupling,the parameters of the line in Hough space have been estimated and predicted with the methods of Kalman filtering.To ascertain the relative position between the runway and sub-munition,some modificative processing in equation for predicting the state of objects' contrail are done with combining some data information of the current image when considering the influence of the detector's spinning with sub-munition and some detailed tracking steps are listed in the following content.All processing data shows that this method has high efficiency and good stability,and reduces the quantity of calculation greatly to some extent.Experiment results show the error of estimation is small which could meet the general object requirement.