An overview of advances in signal processing techniques for classical and quantum wideband synthetic apertures

P Vouras, KV Mishra, A Artusio-Glimpse… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
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 …

Unfolding-aided bootstrapped phase retrieval in optical imaging: Explainable AI reveals new imaging frontiers

S Pinilla, KV Mishra, I Shevkunov… - IEEE Signal …, 2023 - ieeexplore.ieee.org
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 …

Improved imaging by invex regularizers with global optima guarantees

S Pinilla, T Mu, N Bourne… - Advances in Neural …, 2022 - proceedings.neurips.cc
Image reconstruction enhanced by regularizers, eg, to enforce sparsity, low rank or
smoothness priors on images, has many successful applications in vision tasks such as …

Dual-stream adaptive convergent low-light image enhancement network based on frequency perception

G Han, K Wu, F Zeng, J Liu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Low-light image enhancement is a crucial area of research in computer vision, aimed at
recovering normally exposed images from low-light images to facilitate high-level vision …

Global optimality for non-linear constrained restoration problems via invexity

S Pinilla, J Thiyagalingam - The Twelfth International Conference on …, 2024 - openreview.net
Signal restoration is an important constrained optimization problem with significant
applications in various domains. Although non-convex constrained optimization problems …

Power-balanced hybrid optics boosted design for achromatic extended depth-of-field imaging via optimized mixed OTF

SRM Rostami, S Pinilla, I Shevkunov, V Katkovnik… - Applied Optics, 2021 - opg.optica.org
A power-balanced hybrid optical imaging system has a diffractive computational camera,
introduced in this paper, with image formation by a refractive lens and multilevel phase mask …

Sample-efficient sparse phase retrieval via stochastic alternating minimization

JF Cai, Y Jiao, X Lu, J You - IEEE Transactions on Signal …, 2022 - ieeexplore.ieee.org
In this work, we propose a nonconvex stochastic alternating minimizing (SAM) method for
sparse phase retrieval, where an-sparse vector of length is recovered from phaseless linear …

Learning spectral initialization for phase retrieval via deep neural networks

D Morales, A Jerez, H Arguello - Applied Optics, 2022 - opg.optica.org
Phase retrieval (PR) arises from the lack of phase information in the measures recorded by
optical sensors. Phase masks that modulate the optical field and reduce ambiguities in the …

Deep Unrolled Single Snapshot Phase Retrieval via Non-Convex Formulation and Phase Mask Design

A Jerez, J Estupiñán, J Bacca… - IEEE Journal of Selected …, 2024 - ieeexplore.ieee.org
Phase retrieval (PR) consists of recovering the phase information from captured intensity
measurements, known as coded diffraction patterns (CDPs). Non-convex algorithms for …

Multi-Scale Residual and Attention Guidance for Low-Light Image Enhancement in Visual SLAM

D Li, H Zhang, N Liu, G Wang - IEEE Internet of Things Journal, 2024 - ieeexplore.ieee.org
Low-light image enhancement is one of the challenges in robotics. For low-light images,
only adjusting the brightness of the image will inevitably amplify the noise and cause more …