High-Resolution Multi-Spectral Imaging With Diffractive Lenses and Learned Reconstruction

Oktem, Figen S.; Kar, Oğuzhan Fatih; Bezek, Can Deniz; Kamalabadi, F.

doi:10.1109/tci.2021.3075349

Cited by 15 publications

(2 citation statements)

References 63 publications

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“…Here we investigate the resolution achieved with our reconstruction approach ARXIV at compressive settings and compare this to the expected theoretical resolution for the conventional (non-compressive) setting. For this, firstly, we perform conditioning-based resolution analysis (similar to [73]) using only the observation matrix, which is independent of the reconstruction method. Secondly, we consider multiple separated point targets as sample scenes and demonstrate the resolving capability of our approach by analyzing the reconstructed images.…”

Section: Resolution Analysismentioning

confidence: 99%

Efficient physics-based learned reconstruction methods for real-time 3D near-field MIMO radar imaging

Manisali,

Oral,

Oktem

2024

Digital Signal Processing

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Section: Resolution Analysismentioning

confidence: 99%

Efficient physics-based learned reconstruction methods for real-time 3D near-field MIMO radar imaging

Manisali,

Oral,

Oktem

2024

Digital Signal Processing

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“…Amplitude zone plates and photonic sieves are mainly used for focusing short-wave radiation or for obtaining polychromatic images [18][19][20][21]. In [22], photonic sieves were used instead of an array of microlenses in Shack-Hartmann sensors.…”

Section: Introductionmentioning

confidence: 99%

Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle

et al. 2022

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One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There is quite a large number of such mirrors based on different principles and exhibiting varying performance. They constitute a significant portion of the cost of the final optical devices. In this study, we consider the possibility of replacing an adaptive mirror with the adaptive amplitude Fresnel zone plate, implemented using a digital light-processing matrix. Since such matrices are widely used in mass industry products (light projectors), their costs in large batches are 1–2 orders of magnitude lower than the cost of inexpensive deformable mirrors. Numerical modeling for scanning an optical coherence tomography system with adaptive optics is presented. It is shown that wavefront distortions with high spatial frequencies and large amplitudes can be corrected using an amplitude Fresnel zone plate. The results are compared with piezoelectric and microelectromechanical system mirrors.

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Momentum accelerated unfolding network with spectral–spatial prior for computational spectral imaging

Cai,

Li,

et al. 2024

Applied Soft Computing

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High-Resolution Multi-Spectral Imaging With Diffractive Lenses and Learned Reconstruction

Cited by 15 publications

References 63 publications

Efficient physics-based learned reconstruction methods for real-time 3D near-field MIMO radar imaging

Efficient physics-based learned reconstruction methods for real-time 3D near-field MIMO radar imaging

Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle

Momentum accelerated unfolding network with spectral–spatial prior for computational spectral imaging

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