14 citations · 48 across the 8 of their papers we have counts for
8 papers
Joint Cryo-ET Alignment and Reconstruction with Neural Deformation Fields
Valentin Debarnot, Sidharth Gupta, Konik Kothari +1
We propose a framework to jointly determine the deformation parameters and reconstruct the unknown volume in electron cryotomography (CryoET). CryoET aims to reconstruct three-dime…
Differentiable Uncalibrated Imaging
Sidharth Gupta, Konik Kothari, Valentin Debarnot +1
We propose a differentiable imaging framework to address uncertainty in measurement coordinates such as sensor locations and projection angles. We formulate the problem as measurem…
Conditional Injective Flows for Bayesian Imaging
AmirEhsan Khorashadizadeh, Konik Kothari, Leonardo Salsi +3
Most deep learning models for computational imaging regress a single reconstructed image. In practice, however, ill-posedness, nonlinearity, model mismatch, and noise often conspir…
Trumpets: Injective Flows for Inference and Inverse Problems
Konik Kothari, AmirEhsan Khorashadizadeh, Maarten de Hoop +1
We propose injective generative models called Trumpets that generalize invertible normalizing flows. The proposed generators progressively increase dimension from a low-dimensional…
Globally Injective ReLU Networks
Michael Puthawala, Konik Kothari, Matti Lassas +2
Injectivity plays an important role in generative models where it enables inference; in inverse problems and compressed sensing with generative priors it is a precursor to well pos…
Learning the geometry of wave-based imaging
Konik Kothari, Maarten de Hoop, Ivan Dokmanić
We propose a general physics-based deep learning architecture for wave-based imaging problems. A key difficulty in imaging problems with a varying background wave speed is that the…
Random mesh projectors for inverse problems
Sidharth Gupta, Konik Kothari, Maarten V. de Hoop +1
We propose a new learning-based approach to solve ill-posed inverse problems in imaging. We address the case where ground truth training samples are rare and the problem is severel…
Localization and instability in sheared granular materials: Role of friction and vibration
Konik R. Kothari, Ahmed Elbanna
Shear banding and stick-slip instabilities have been long observed in sheared granular materials. Yet, their microscopic underpinnings, interdependencies and variability under diff…