ADMM and Spectral Proximity Operators in Hyperspectral Broadband Phase Retrieval for Quantitative Phase Imaging

Katkovnik, Vladimir; Shevkunov, Igor; Егиазарян, Карен

doi:10.48550/arxiv.2105.07891

Cited by 2 publications

(2 citation statements)

References 46 publications

(80 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hyperspectral complex-domain imaging is a comparatively new development that deals with a phase delay of coherent light in transparent or reflective objects [224]. Hyperspectral broadband phase imaging is more informative than the monochromatic technique.…”

Section: Coded Imaging Setupsmentioning

confidence: 99%

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Vouras¹,

Mishra²,

Artusio‐Glimpse³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Rapid developments in synthetic aperture (SA) systems, which generate a larger aperture with greater angular resolution than is inherently possible from the physical dimensions of a single sensor alone, are leading to novel research avenues in several signal processing applications. The SAs may either use a mechanical positioner to move an antenna through space or deploy a distributed network of sensors. With the advent of new hardware technologies, the SAs tend to be denser nowadays. The recent opening of higher frequency bands has led to wide SA bandwidths. In general, new techniques and setups are required to harness the potential of wide SAs in space and bandwidth. Herein, we provide a brief overview of emerging signal processing trends in such spatially and spectrally wideband SA systems. This guide is intended to aid newcomers in navigating the most critical issues in SA analysis and further supports the development of new theories in the field. In particular, we cover the theoretical framework and practical underpinnings of wideband SA radar, channel sounding, sonar, radiometry, and optical applications. Apart from the classical SA applications, we also discuss the quantum electric-field-sensing probes in SAs that are currently undergoing active research but remain at nascent stages of development.

show abstract

Section: Coded Imaging Setupsmentioning

confidence: 99%

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Vouras¹,

Mishra²,

Artusio‐Glimpse³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Contrary to the existing phase retrieval setups, this unique system is capable of computational super-resolved video reconstruction via phase retrieval with a high frame rate limited only by the camera. Hyperspectral complex-domain imaging: This is a comparatively new development that deals with a phase delay of a coherent light in transparent or reflective objects [35]. The hyperspectral broadband phase imaging is more informative than the monochromatic technique (see near zone setup and results in Figure 8).…”

Section: Enabling Doe Experimental Setupsmentioning

confidence: 99%

Unfolding-Aided Bootstrapped Phase Retrieval in Optical Imaging

Pinilla¹,

Mishra²,

Shevkunov³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Phase retrieval in optical imaging refers to the recovery of a complex signal from phaseless data acquired in the form of its diffraction patterns. These patterns are acquired through a system with a coherent light source that employs a diffractive optical element (DOE) to modulate the scene resulting in coded diffraction patterns at the sensor. Recently, the hybrid approach of model-driven network or deep unfolding has emerged as an effective alternative because it allows for bounding the complexity of phase retrieval algorithms while also retaining their efficacy. Additionally, such hybrid approaches have shown promise in improving the design of DOEs that follow theoretical uniqueness conditions. There are opportunities to exploit novel experimental setups and resolve even more complex DOE phase retrieval applications. This paper presents an overview of algorithms and applications of deep unfolding for bootstrapped -regardless of near, middle, and far zones -phase retrieval.

show abstract

ADMM and Spectral Proximity Operators in Hyperspectral Broadband Phase Retrieval for Quantitative Phase Imaging

Cited by 2 publications

References 46 publications

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures

Unfolding-Aided Bootstrapped Phase Retrieval in Optical Imaging

Contact Info

Product

Resources

About