Single frame atmospheric turbulence mitigation: A benchmark study and a new physics-inspired transformer model

Z Mao, A Jaiswal, Z Wang, SH Chan - European Conference on Computer …, 2022 - Springer
Image restoration algorithms for atmospheric turbulence are known to be much more
challenging to design than traditional ones such as blur or noise because the distortion …

Accelerating atmospheric turbulence simulation via learned phase-to-space transform

Z Mao, N Chimitt, SH Chan - Proceedings of the IEEE/CVF …, 2021 - openaccess.thecvf.com
Fast and accurate simulation of imaging through atmospheric turbulence is essential for
developing turbulence mitigation algorithms. Recognizing the limitations of previous …

Real-time dense field phase-to-space simulation of imaging through atmospheric turbulence

N Chimitt, X Zhang, Z Mao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Numerical simulation of atmospheric turbulence is one of the biggest bottlenecks in
developing computational techniques for solving the inverse problem in long-range imaging …

Tilt-then-blur or blur-then-tilt? clarifying the atmospheric turbulence model

SH Chan - IEEE Signal Processing Letters, 2022 - ieeexplore.ieee.org
Imaging at a long distance often requires advanced image restoration algorithms to
compensate for the distortions caused by atmospheric turbulence. However, unlike many …

Farsight: A physics-driven whole-body biometric system at large distance and altitude

F Liu, R Ashbaugh, N Chimitt… - Proceedings of the …, 2024 - openaccess.thecvf.com
Whole-body biometric recognition is an important area of research due to its vast
applications in law enforcement, border security, and surveillance. This paper presents the …

Computational imaging through atmospheric turbulence

SH Chan, N Chimitt - Foundations and Trends® in Computer …, 2023 - nowpublishers.com
Since the seminal work of Andrey Kolmogorov in the early 1940's, imaging through
atmospheric turbulence has grown from a pure scientific pursuit to an important subject …

Spatio-Temporal Turbulence Mitigation: A Translational Perspective

X Zhang, N Chimitt, Y Chi, Z Mao… - Proceedings of the …, 2024 - openaccess.thecvf.com
Recovering images distorted by atmospheric turbulence is a challenging inverse problem
due to the stochastic nature of turbulence. Although numerous turbulence mitigation (TM) …

Nert: Implicit neural representations for unsupervised atmospheric turbulence mitigation

W Jiang, V Boominathan… - Proceedings of the …, 2023 - openaccess.thecvf.com
The atmospheric turbulence mitigation problem has emerged as a challenging inverse
problem in the communities of computer vision and optics. However, current methods either …

Scattering and gathering for spatially varying blurs

N Chimitt, X Zhang, Y Chi… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
A spatially varying blur kernel is specified by an input coordinate and an output coordinate.
For computational efficiency, we sometimes write as a linear combination of spatially …

Anisoplanatic optical turbulence simulation for near-continuous profiles without wave propagation

N Chimitt, S Chan - Optical Engineering, 2023 - spiedigitallibrary.org
For the simulation of anisoplanatic optical turbulence, split-step propagation is the gold
standard. Within the context of the degradations being limited to phase distortions, one …