Detection Algorithm of the Ship Wakes from SAR Imagery Based on Localized Radon Transform
基于局域Radon变换的尾迹提取算法

This paper presents a method for detecting ship wakes in SAR images based on the localization of Radon transform.Firstly,the image is normalized,and the noticeable pixel would be regarded as a constant.In localized radon space a big number will correspond to a long line segment.An appropriate threshold can decrease false alarm.By choosing appropriate structuring elements,i.e.dilation and erosion lengths,the two responses which are close enough in the vertical direction will be joined into one.The effect of erosion is that responses which are too narrow in the vertical direction will disappear entirely while responses which are wide enough will be contracted vertically.The simulation and real data processing results show that the algorithm is successful in wake features detection,wake location and computational efficiency.