Tensor Deblurring and Denoising Using Total Variation

2021/11/06 by Fatoumata Sanogo, Sanogo, Fatoumata, Carmeliza Navasca +3
Computer Science · Mathematics · #FOS: Mathematics #Numerical Analysis (math.NA) #cs.NA #math.NA

paper · pdf · doi:10.48550/arxiv.2111.03965

19 pages, 22 images

arxiv created 2021/11/06 · arxiv updated 2021/11/09

Abstract

We consider denoising and deblurring problems for tensors. While images can be discretized as matrices, the analogous procedure for color images or videos leads to a tensor formulation. We extend the classical ROF functional for variational denoising and deblurring to the tensor case by employing multi-dimensional total variation regularization. Furthermore, the resulting minimization problem is calculated by the FISTA method generalized to the tensor case. We provide some numerical experiments by applying the scheme to the denoising, the deblurring, and the recoloring of color images as well as to the deblurring of videos.

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