Electronic Science and Technology ›› 2023, Vol. 36 ›› Issue (2): 53-60.doi: 10.16180/j.cnki.issn1007-7820.2023.02.008

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Total Variation and Sparsity Regularized Deep Nonnegative Matrix Factorization for Hyperspectral Unmixing

ZHAO Wenjun1,ZHAI Han2,ZHANG Hongyan1   

  1. 1. State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,Wuhan 430079,China
    2. School of Geography and Information Engineering, China University of Geosciences (Wuhan),Wuhan 430074,China
  • Received:2021-08-18 Online:2023-02-15 Published:2023-01-17
  • Supported by:
    National Natural Science Foundation of China(61871298);National Natural Science Foundation of China(42071322)

Abstract:

The traditional nonnegative matrix factorization methods are based on single-layer model. The deep nonnegative matrix factorization methods are based on the mathematical theory, ignoring the actual spectral mixing process of materials. In this regard, this study starts from the physical process of spectral mixing, integrates non-negative matrix decomposition and deep learning, and reversely models the spectral mixing process. In addition, considering the sparsity and spatial smoothness of abundance, a fully-variation sparse constrained deep non-negative matrix factorization model for endmember matrix-oriented unmixing of hyperspectral remote sensing images is established. Through simulation experiments and real experiments, the proposed method is compared with five unmixing methods. The results show that compared with the abundance-oriented deep nonnegative matrix factorization algorithm, the average spectral angular distance and root mean square error of the proposed method are reduced, the best unmixing results are obtained.

Key words: hyperspectral remote sensing, hyperspectral unmixing, linear spectral unmixing, nonnegative matrix factorization, deep learning, deep nonnegative matrix factorization, sparsity constraint, total variation constraint

CLC Number: 

  • TP751