Journal
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
Volume 15, Issue -, Pages 4414-4436Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTARS.2022.3175257
Keywords
Hyperspectral imaging; Mixture models; Indexes; Libraries; Earth; Data mining; Cost function; Deep learning; hyperspectral unmixing; linear mixture model; nonnegative matrix factorization
Categories
Funding
- National Natural Science Foundation of China [61871335, 61801404]
- Fundamental Research Funds for the Central Universities [2682020ZT35]
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This article provides a comprehensive survey of NMF-based methods for hyperspectral unmixing. It explores how to improve NMF by utilizing the spectral, spatial, and structural information of hyperspectral images. The study categorizes the development directions into constrained NMF, structured NMF, and generalized NMF, and conducts experiments to demonstrate the effectiveness of associated algorithms. The article concludes with possible future directions for the development of hyperspectral unmixing.
Hyperspectral unmixing has been an important technique that estimates a set of endmembers and their corresponding abundances from a hyperspectral image (HSI). Nonnegative matrix factorization (NMF) plays an increasingly significant role in solving this problem. In this article, we present a comprehensive survey of the NMF-based methods proposed for hyperspectral unmixing. Taking the NMF model as a baseline, we show how to improve NMF by utilizing the main properties of HSIs (e.g., spectral, spatial, and structural information). We categorize three important development directions, including constrained NMF, structured NMF, and generalized NMF. Furthermore, several experiments are conducted to illustrate the effectiveness of associated algorithms. Finally, we conclude this article with possible future directions with the purposes of providing guidelines and inspiration to promote the development of hyperspectral unmixing.
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