Compressed sensing in the far-field of the spatial light modulator in high noise conditions

Kallepalli, A. , Innes, J. and Padgett, M. J. (2021) Compressed sensing in the far-field of the spatial light modulator in high noise conditions. Scientific Reports, 11, 17460. (doi: 10.1038/s41598-021-97072-2) (PMID:34465854) (PMCID:PMC8408209)

Abstract

Single-pixel imaging techniques as an alternative to focal-plane detector arrays are being widely investigated. The interest in these single-pixel techniques is partly their compatibility with compressed sensing but also their applicability to spectral regions where focal planes arrays are simply not obtainable. Here, we show how a phased-array modulator source can be used to create Hadamard intensity patterns in the far-field, thereby enabling single-pixel imaging. Further, we successfully illustrate an implementation of compressed sensing for image reconstruction in conditions of high noise. In combination, this robust technique could be applied to any spectral region where spatial light phase modulators or phased-array sources are available.

• Item Type: Articles
• Additional Information: We wish to acknowledge the support from Leonardo ITG, H2020 Q-Sort (Project ID: 766970), the Royal Society and QuantIC (EP/M01326X/1).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Padgett, Professor Miles and Kallepalli, Dr Akhil
• Authors: Kallepalli, A., Innes, J., and Padgett, M. J.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Scientific Reports
• Publisher: Nature Research
• ISSN: 2045-2322
• ISSN (Online): 2045-2322
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in Scientific Reports 11: 17460
• Publisher Policy: Reproduced under a Creative Commons licence
• Data DOI: 10.5525/gla.researchdata.1133

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
301480		Quantum Sorter	Miles Padgett	European Commission (EC)	766970	P&S - Physics & Astronomy
190841		UK Quantum Technology Hub in Enhanced Quantum Imaging	Miles Padgett	Engineering and Physical Sciences Research Council (EPSRC)	EP/M01326X/1	P&S - Physics & Astronomy