相关滤波算法是通过模板与检测目标的相似性来确定目标位置, 自从将相关滤波概念用于目标跟踪起便一直受到广泛的关注, 而核相关滤波算法的提出更是将这一理念推到了一个新的高度。核相关滤波算法以其高速度、高精度以及高鲁棒性的特点迅速成为研究热点, 但核相关滤波算法在抗遮挡性能上有着严重的缺陷。本文针对核相关滤波在抗遮挡性能上的缺陷对此算法进行改进, 提出了一种融合 Sobel边缘二元模式算法的改进 KCF算法, 通过 Sobel边缘二元模式算法加权融合目标特征, 然后计算目标的峰值响应强度旁瓣值比检测目标是否丢失, 最后将 Kalman算法作为目标遮挡后搜索目标的策略。结果显示, 本文方法不仅对抗遮挡有较好的鲁棒性, 而且能够满足实时要求, 准确地对目标进行再跟踪。

The correlation filtering algorithm determines the target position by the similarity between the template and the detection target. Since the related filtering concept is used for target tracking, it has been widely concerned, and the proposal of the kernelized correlation filter is to push this concept to a new height. The kernelized correlation filter has become a research hotspot with its high speed, high precision and high robustness. However, the kernelized correlation filter has serious defects in anti-blocking performance. In this paper, the algorithm for the anti-occlusion performance of kernelized correlation filter is improved. An improved KCF algorithm based on Sobel edge binary mode algorithm is proposed. The Sobel edge binary mode algorithm is used to weight the fusion target feature. The target's peak response intensity sidelobe value is more than the detection target is lost. Finally, the Kalman algorithm is used as the target occlusion strategy. The results show that the proposed method not only has better robustness against occlusion, but also satisfy the real-time requirements and can accurately re-tracks the target.