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Optimal Transport for Super Resolution Applied to Astronomy Imaging

Authors :
Rawson, Michael
Hultgren, Jakob
Source :
Proceedings of the 30th European Signal Processing Conference, EUSIPCO, 2022. ISBN: 978-1-6654-6798-8
Publication Year :
2022

Abstract

Super resolution is an essential tool in optics, especially on interstellar scales, due to physical laws restricting possible imaging resolution. We propose using optimal transport and entropy for super resolution applications. We prove that the reconstruction is accurate when sparsity is known and noise or distortion is small enough. We prove that the optimizer is stable and robust to noise and perturbations. We compare this method to a state of the art convolutional neural network and get similar results for much less computational cost and greater methodological flexibility.<br />Comment: 5 pages, 2 figures

Details

Database :
arXiv
Journal :
Proceedings of the 30th European Signal Processing Conference, EUSIPCO, 2022. ISBN: 978-1-6654-6798-8
Publication Type :
Report
Accession number :
edsarx.2202.05354
Document Type :
Working Paper