Tensor non-local low-rank regularization for recovering compressed hyperspectral images

Sparsity-based methods have been widely used in hyperspectral imagery compression recovery (HSI-CR). However, most of the available HSI-CR methods work on vector space by vectorizing hyperspectral cubes in spatial and spectral domain, which will destroy spatial and spectral correlation and result in...

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Vydáno v:2017 IEEE International Conference on Image Processing (ICIP) s. 3046 - 3050
Hlavní autoři: Zhao, Yongqiang, Xue, Jize, Hao, Jinglei
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.09.2017
Témata:
alternative direction multiplier method
compression recovery
Correlation
Hyperspectral image
Hyperspectral imaging
Image coding
Image reconstruction
Matrix decomposition
non-local self-similarity
structured sparsity
Tensile stress
tensor low-rank approximation
Three-dimensional displays
ISSN:2381-8549
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Shrnutí:Sparsity-based methods have been widely used in hyperspectral imagery compression recovery (HSI-CR). However, most of the available HSI-CR methods work on vector space by vectorizing hyperspectral cubes in spatial and spectral domain, which will destroy spatial and spectral correlation and result in spatial and spectral information distortion in the recovery. At the same time, vectorization also make HSI's intrinsic structure sparsity cannot be utilized adequately. In this paper, a tensor non-local low-rank regularization (TNLR) approach is proposed to exploit essential structured sparsity and explore its advantages for CR of hyperspectral imagery. Specifically, a tensor nuclear norm penalty function is utilized as tensor low-rank regularization term to describe the spatial-and-spectral correlation hidden in HSI. To further improve the computational efficiency of the proposed algorithm, a fast implementation algorithm is developed by using the alternative direction multiplier method (ADMM) technique. Experimental results are shown that the proposed TNLR-CR algorithm can significantly outperform existing state-of-the-art CR techniques for hyperspectral image recovery.
ISSN:2381-8549
DOI:10.1109/ICIP.2017.8296842