Hyperspectral Mixed Noise Removal via Subspace Representation and
Weighted Low-rank Tensor Regularization
- URL: http://arxiv.org/abs/2111.07044v1
- Date: Sat, 13 Nov 2021 05:30:56 GMT
- Title: Hyperspectral Mixed Noise Removal via Subspace Representation and
Weighted Low-rank Tensor Regularization
- Authors: Hang Zhou, Yanchi Su, Zhanshan Li
- Abstract summary: We employ subspace representation and the weighted low-rank tensor regularization (SWLRTR) into the model to remove the mixed noise in the hyperspectral image.
Experiments demonstrate that the SWLRTR method performs better than other hyperspectral denoising methods quantitatively and visually.
- Score: 10.131033322742363
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Recently, the low-rank property of different components extracted from the
image has been considered in man hyperspectral image denoising methods.
However, these methods usually unfold the 3D tensor to 2D matrix or 1D vector
to exploit the prior information, such as nonlocal spatial self-similarity
(NSS) and global spectral correlation (GSC), which break the intrinsic
structure correlation of hyperspectral image (HSI) and thus lead to poor
restoration quality. In addition, most of them suffer from heavy computational
burden issues due to the involvement of singular value decomposition operation
on matrix and tensor in the original high-dimensionality space of HSI. We
employ subspace representation and the weighted low-rank tensor regularization
(SWLRTR) into the model to remove the mixed noise in the hyperspectral image.
Specifically, to employ the GSC among spectral bands, the noisy HSI is
projected into a low-dimensional subspace which simplified calculation. After
that, a weighted low-rank tensor regularization term is introduced to
characterize the priors in the reduced image subspace. Moreover, we design an
algorithm based on alternating minimization to solve the nonconvex problem.
Experiments on simulated and real datasets demonstrate that the SWLRTR method
performs better than other hyperspectral denoising methods quantitatively and
visually.
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