Journal of Shanghai Jiaotong University >
Detection Algorithm of Ship Wake in SAR Images
Received date: 2019-10-29
Online published: 2020-12-31
In order to solve the problem of ship wake detection in synthetic aperture radar (SAR) image, a coherent speckle noise suppression algorithm based on analytic dictionary and a wake detection algorithm based on Radon transform are proposed. First, the morphological component separation algorithm based on analytic dictionary is used to separate the components of SAR image. The structural component image with ship wake and the texture component image with speckle noise and sea clutter are obtained. Then, the local Radon transform is performed on the structural component that contains the ship wakes. Finally, the real and false local peak points are distinguished by the ship wake recognition algorithm based on peak clustering decision, so as to obtain the local peak points generated by the real wakes and determine the specific position of the ship wakes. The experimental results show that the proposed algorithm can effectively detect the ship wakes in SAR images.
ZHAO Ting, WANG Shentao, NIU Lin, XI Peili, CAI Yunze . Detection Algorithm of Ship Wake in SAR Images[J]. Journal of Shanghai Jiaotong University, 2020 , 54(12) : 1259 -1268 . DOI: 10.16183/j.cnki.jsjtu.2019.311
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