This paper proposes a non-data-driven deep neural network for spectral image recovery problems such as denoising, single hyperspectral image super-resolution, and compressive spectral imaging reconstruction. Unlike previous methods, the proposed approach, dubbed Mixture-Net, implicitly learns the prior information through the network. Mixture-Net consists of a deep generative model whose layers are inspired by the linear and non-linear low-rank mixture models, where the recovered image is composed of a weighted sum between the linear and non-linear decomposition. Mixture-Net also provides a low-rank decomposition interpreted as the spectral image abundances and endmembers, helpful in achieving remote sensing tasks without running additional routines. The experiments show the MixtureNet effectiveness outperforming state-of-the-art methods in recovery quality with the advantage of architecture interpretability.
@article{arxiv.2211.02973,
title = {Mixture-Net: Low-Rank Deep Image Prior Inspired by Mixture Models for Spectral Image Recovery},
author = {Tatiana Gelvez-Barrera and Jorge Bacca and Henry Arguello},
journal= {arXiv preprint arXiv:2211.02973},
year = {2022}
}