학술논문

Hyperspectral Super-Resolution With Coupled Tucker Approximation: Recoverability and SVD-Based Algorithms
Document Type
Periodical
Source
IEEE Transactions on Signal Processing IEEE Trans. Signal Process. Signal Processing, IEEE Transactions on. 68:931-946 2020
Subject
Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Computing and Processing
Tensors
Approximation algorithms
Degradation
Signal processing algorithms
Hyperspectral imaging
Mathematical model
Hyperspectral super-resolution
low-rank tensor approximation
data fusion
recovery
identifiability
Language
ISSN
1053-587X
1941-0476
Abstract
We propose a novel approach for hyperspectral super-resolution, that is based on low-rank tensor approximation for a coupled low-rank multilinear (Tucker) model. We show that the correct recovery holds for a wide range of multilinear ranks. For coupled tensor approximation, we propose two SVD-based algorithms that are simple and fast, but with a performance comparable to the state-of-the-art methods. The approach is applicable to the case of unknown spatial degradation and to the pansharpening problem.