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• W3179808591 abstract "Hyperspectral image (HSI) denoising aims to restore clean HSI from the noise-contaminated one which is usually caused during data acquisition and conversion. In this paper, we propose a novel spatial-spectral total variation (SSTV) regularized nonconvex local low-rank (LR) tensor approximation method to remove mixed noise in HSIs. From one aspect, the clean HSI data have its underlying local LR tensor property, even though the real HSI data is not globally low-rank due to the non-independent and non-identically distributed noise and out-liers. According to this fact, we propose a novel tensor Lγ-norm to formulate the local LR prior. From another aspect, HSIs are assumed to be piecewisely smooth in the global spatial and spectral domains. Instead of traditional bandwise total variation, we use the SSTV regularization to simultaneously consider global spatial and spectral smoothness. Results on simulated and real HSI datasets indicate that the use of local LR tensor penalty and global SSTV can boost the preserving of local details and overall structural information in HSIs." @default.
• W3179808591 created "2021-07-19" @default.
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• W3179808591 date "2021-01-01" @default.
• W3179808591 modified "2023-09-30" @default.
• W3179808591 title "Hyperspectral image denoising via global spatial-spectral total variation regularized nonconvex local low-rank tensor approximation" @default.
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• W3179808591 doi "https://doi.org/10.1016/j.sigpro.2020.107805" @default.
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