Hyperspectral Unmixing via Nonnegative Matrix Factorization With Handcrafted and Learned Priors

Nowadays, nonnegative matrix factorization (NMF)-based methods have been widely applied to blind spectral unmixing. Introducing proper regularizers to NMF is crucial for mathematically constraining the solutions and physically exploiting spectral and spatial properties of images. Generally, properly...

Full description

Saved in:
Bibliographic Details
Published in:IEEE geoscience and remote sensing letters 2022, Vol.19, p.1-5
Main Authors: Zhao, Min, Gao, Tiande, Chen, Jie, Chen, Wei
Format: Article
Language:English
Subjects:
Estimation
Factorization
Hyperspectral imaging
Hyperspectral unmixing
learned priors
Mathematical analysis
Noise reduction
nonnegative matrix factorization (NMF)
Optimization
Plugs
PSNR
Task analysis
Task complexity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nowadays, nonnegative matrix factorization (NMF)-based methods have been widely applied to blind spectral unmixing. Introducing proper regularizers to NMF is crucial for mathematically constraining the solutions and physically exploiting spectral and spatial properties of images. Generally, properly handcrafted regularizers and solving the associated complex optimization problem are nontrivial tasks. In our work, we propose an NMF-based unmixing framework which jointly uses a learned regularizer from data and a handcrafted regularizer. To be specific, we plug learned priors of abundances where the associated subproblem can be addressed using various image denoisers, and we consider an \ell _{2,1} -norm as an example to illustrate the way of integrating handcrafted regularizers. The proposed framework is flexible and extendable. Both synthetic data and real airborne data are conducted to confirm the effectiveness of our method.
ISSN:1545-598X
1558-0571
DOI:10.1109/LGRS.2020.3047481