基于光学图像的舰船航迹检测

Ship wake detection using optical images

舰船航迹检测在海上交通管制和军事领域中有着广泛的应用前景.现有的航迹检测方法大都基于SAR图像,信息不直观而且算法复杂.提出了一种新颖的基于光学图像的航迹检测方法.首先利用纹理分析方法判断待检测区域中是否含有航迹,然后在通过判断的区域中使用条纹增强算法,凸现航迹特征,最后使用Radon变换检测航迹,并对结果进行了优化.与现有的检测方法相比,该方法针对性强,复杂度低.使用该方法对实际航拍图片进行了检测实验,取得了很好的效果.

Ship wake detection has a broad range of applications in marine traffic control and national security. Current methods were developed based on SAR（Synthetic Aperture Rodar） images. As a result they have two significant disadvantages： the information is not intuitive and the corresponding algorithms are relatively complex. This paper proposes a novel ship wake detection method based on optical images. Firstly, it judges whether there are ship wakes through texture analysis. Then it uses a stripe enhancement algorithm to enhance the characteristics of a ship wake. Finally, it applies Radon transform to detect ship wakes and optimizes detection results. Compared with existing methods, the proposed method is more appropriate for the task and has lower complexity. The method was tested on pictures with wakes and demonstrated effective wake detection.