Search Results for author: Pakshal Bohra

Found 6 papers, 2 papers with code

A Neural-Network-Based Convex Regularizer for Inverse Problems

2 code implementations22 Nov 2022 Alexis Goujon, Sebastian Neumayer, Pakshal Bohra, Stanislas Ducotterd, Michael Unser

The emergence of deep-learning-based methods to solve image-reconstruction problems has enabled a significant increase in reconstruction quality.

Denoising MRI Reconstruction

Improving Lipschitz-Constrained Neural Networks by Learning Activation Functions

1 code implementation28 Oct 2022 Stanislas Ducotterd, Alexis Goujon, Pakshal Bohra, Dimitris Perdios, Sebastian Neumayer, Michael Unser

Lipschitz-constrained neural networks have several advantages over unconstrained ones and can be applied to a variety of problems, making them a topic of attention in the deep learning community.

Approximation of Lipschitz Functions using Deep Spline Neural Networks

no code implementations13 Apr 2022 Sebastian Neumayer, Alexis Goujon, Pakshal Bohra, Michael Unser

Lipschitz-constrained neural networks have many applications in machine learning.

Bayesian Inversion for Nonlinear Imaging Models using Deep Generative Priors

no code implementations18 Mar 2022 Pakshal Bohra, Thanh-an Pham, Jonathan Dong, Michael Unser

In this work, we present a Bayesian reconstruction framework for nonlinear imaging models where we specify the prior knowledge on the image through a deep generative model.

Retrieval

A Statistical Framework to Investigate the Optimality of Signal-Reconstruction Methods

no code implementations18 Mar 2022 Pakshal Bohra, Pol del Aguila Pla, Jean-François Giovannelli, Michael Unser

We present a statistical framework to benchmark the performance of reconstruction algorithms for linear inverse problems, in particular, neural-network-based methods that require large quantities of training data.

Benchmarking

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