针对低能激光对电视制导跟踪波门实施视场内干扰时,传统的电视跟踪算法无法跟踪目标的问题,提出了一种基于结构相似度的粒子滤波相关跟踪算法。首先在粒子候选区域内进行直方图均衡化,提取出目标空间直方图,然后计算波门背景区域与目标的结构相似度,从图像质量上判断粒子滤波器的跟踪状态,建立抗干扰跟踪模式,跟踪目标。实验表明:该算法克服了干扰图像信噪比低和对比度动态范围窄的缺陷,实现了稳定跟踪目标,具有较强的鲁棒性。

A tracking arithmetic of particle filter based on structural similarity was proposed in order to solve the problem that traditional TV tracking arithmetic did not track object when TV guided tracking gate was jammed by low-energy laser. Firstly spatial histogram was extracted after histogram flattening was done in the area of particle election. Secondly structural similarity was calculated between object and tracking gate background, which tracking state was judged by, and antijamming tracking model was established for tracking object. The experiment result shows that the shortage of low signal-to-noise radio and low contrast is solved.