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

Akhil Kallepalli; John Innes; Miles J. Padgett

doi:10.1038/s41598-021-97072-2

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

Akhil Kallepalli^*, John Innes, Miles J. Padgett

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

14 Downloads (Pure)

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.

Original language	English
Article number	17460
Number of pages	8
Journal	Scientific Reports
Volume	11
Early online date	31 Aug 2021
DOIs	https://doi.org/10.1038/s41598-021-97072-2
Publication status	Published - 31 Dec 2021
Externally published	Yes

Funding

We wish to acknowledge the support from Leonardo ITG, H2020 Q-Sort (Project ID: 766970), the Royal Society and the EPSRC Research Council funding to QuantIC [EP/M01326X/1].

Keywords

Single-pixel imaging
spatial light modulator
high noise conditions
adaptive optics
imaging techniques

Access to Document

10.1038/s41598-021-97072-2Licence: CC BY 4.0

Kallepalli-etal-SR-2021-Compressed-sensing-in-the-far-field-of-the-spatial-light-modulatorFinal published version, 1.8 MBLicence: CC BY 4.0

Single-pixel imaging and compressed sensing in the far-field of the spatial light modulator
Kallepalli, A. (Creator) & Padgett, M. (Contributor), University of Glasgow, 19 Apr 2024
DOI: 10.5525/gla.researchdata.1133
Dataset

Discussing the generation-after-next imaging tools for the human brain (Photonics Seminar Series)
Kallepalli, A. (Invited speaker)
26 Feb 2025
Activity: Talk or Presentation › Invited talk

Cite this

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title = "Compressed sensing in the far-field of the spatial light modulator in high noise conditions",

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.",

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KW - Single-pixel imaging

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KW - high noise conditions

KW - adaptive optics

KW - imaging techniques

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ER -

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

Abstract

Funding

Keywords

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Datasets

Single-pixel imaging and compressed sensing in the far-field of the spatial light modulator

Activities

Discussing the generation-after-next imaging tools for the human brain (Photonics Seminar Series)

Cite this