基于光学图像的舰船航迹检测

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Title:

Ship wake detection using optical images

文章编号:

1673-4785(2007)04-0046-06

作者:

王彦杰，汪增福��

中国科学技术大学�A自动化系，安徽�A合肥�A230027

Author(s):

WANG Yan-jie,WANG Zeng-fu��

Department of Automation, University of Science and Technology of China , Hefei 230027, China

关键词:

航迹检测; Radon变换; 纹理分析

Keywords:

ship wake detection;  Radon transform;  texture analysi s

分类号:

TP391.41

文献标志码:

A

摘要:

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.

Abstract:

Ship wake detection has a broad range of applications in marine traffi c control and national security. Current methods were developed based on SAR(Syn thetic Aperture Rodar) ima ges. As a result they have two significant disadvantages: the information is not intuitive and the corresponding algorithms are relatively complex. This paper p roposes 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 str ipe enhancement algorithm to enhance the characteristics of a ship wake. Finally , it applies Radon transform to detect ship wakes and optimizes detection result s. C ompared with existing methods, the proposed method is more appropriate for the t ask and has lower complexity. The method was tested on pictures with wakes and d emonstrated effective wake detection.