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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >PolSAR Ship Detection Based on Superpixel-Level Scattering Mechanism Distribution Features
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PolSAR Ship Detection Based on Superpixel-Level Scattering Mechanism Distribution Features

机译：基于超像素级散射机制分布特征的PolSAR舰船检测

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摘要

To improve the target detection performance under a low signal-to-clutter ratio, this letter presents a new polarimetric synthetic aperture radar (PolSAR) ship detector based on superpixel-level scattering mechanism (SM) distribution features. The proposed method is based on the observation that the SMs of targets and clutter have different distributions in the classical plane. To make use of this difference in ship detection, multiscale superpixels are first generated for PolSAR images. Then, two features describing the SM distribution in the superpixel are proposed. Based on these features, a test statistic independent of the scattering intensity is finally defined. The performance improvement of the proposed method is verified using a synthetic data set and real PolSAR images obtained from a RADARSAT-2 data set.
机译：为了在低信杂比下提高目标检测性能，这封信提出了一种基于超像素级散射机制（SM）分布特征的新型极化合成孔径雷达（PolSAR）舰船检测器。提出的方法是基于观察到目标和杂波的SM在经典平面上具有不同的分布。为了利用船舶检测中的这种差异，首先为PolSAR图像生成多尺度超像素。然后，提出了描述超像素中的SM分布的两个特征。基于这些特征，最终定义了与散射强度无关的测试统计量。使用合成数据集和从RADARSAT-2数据集获得的真实PolSAR图像验证了所提出方法的性能改进。

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