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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >A Novel Strategy of Nonnegative-Matrix-Factorization-Based Polarimetric Ship Detection
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A Novel Strategy of Nonnegative-Matrix-Factorization-Based Polarimetric Ship Detection

机译:基于非负矩阵因子化的极化舰船检测新策略

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摘要

In this letter, a new strategy based on nonnegative matrix factorization (NMF) is proposed for polarimetric ship detection. This method utilizes the sparse feature of nonnegative eigenvalues, and the sparse degree is proposed to be estimated from the histogram which can reveal the sparse distribution of eigenvalues. Combining the nonnegative and sparse features, the NMF-based ship detection method can be implemented flexibly and efficiently. It has been carried out on the C-band quad polarimetric synthetic aperture radar (PolSAR) and dual PolSAR ocean data sets to validate its effectiveness. Unlike a constant-false-alarm-rate detector, the NMF method does not depend on target size and therefore offers improved detection performance under low-signal-to-clutter-ratio conditions.
机译:在这封信中,提出了一种基于非负矩阵分解(NMF)的新策略,用于极化舰船检测。该方法利用了非负特征值的稀疏特征,提出了从直方图估计稀疏度的方法,该方法可以揭示特征值的稀疏分布。结合非负和稀疏特征,可以灵活,高效地实现基于NMF的船舶检测方法。它已在C波段四极化合成孔径雷达(PolSAR)和双PolSAR海洋数据集上进行了验证,以验证其有效性。与恒定错误警报率检测器不同,NMF方法不取决于目标大小,因此在低信号杂波比条件下提供了改进的检测性能。

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