Multi-sharpening hyperspectral remote sensing data by Multiplicative Joint-Criterion Linear-Quadratic Nonnegative Matrix Factorization

Fatima Zohra Benhalouche, M. S. Karoui, Y. Deville, I. Boukerch, A. Ouamri
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引用次数: 1

Abstract

Multi-sharpening consists in fusing a multispectral image with a hyperspectral one, to produce an unobservable image with the high spatial resolution of the former and the high spectral resolution of the latter. In this paper, a new fusion method, based on the spectral unmixing concept, is proposed. The proposed method, related to linear-quadratic spectral unmixing techniques, and based on linear-quadratic nonnegative matrix factorization, optimizes a new joint criterion by using new designed multiplicative update rules. This joint criterion exploits a spatial degradation model between the considered images. The proposed method is applied to synthetic data, and its effectiveness is evaluated with established performance criteria. Obtained results prove that the proposed method yields multi-sharpened hyperspectral data with good spectral and spatial fidelities. These results also illustrate that the proposed method outperforms the considered multi-sharpening literature approaches.
基于乘法联合准则线性二次非负矩阵分解的多锐化高光谱遥感数据
多锐化是指将多光谱图像与高光谱图像融合,得到高空间分辨率和高光谱分辨率的不可观测图像。本文提出了一种基于光谱解混概念的融合新方法。该方法与线性二次谱解混技术相关,基于线性二次非负矩阵分解,利用新设计的乘法更新规则对一个新的联合准则进行优化。该联合准则利用了考虑的图像之间的空间退化模型。将该方法应用于综合数据,并以建立的性能标准对其有效性进行了评价。结果表明,该方法得到的多锐化高光谱数据具有良好的光谱保真度和空间保真度。这些结果还表明,所提出的方法优于文献中考虑的多锐化方法。
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