← Search

Hemant Kumar Aggarwal

4 accepted papers

2021

Ensure: Ensemble Stein's Unbiased Risk Estimator for Unsupervised Learning

ICASSP 2021accepted

Deep learning algorithms are emerging as powerful alternatives to compressed sensing methods, offering improved image quality and computational efficiency. Unfortunately, fully sampled training images may not be available or are difficult to acquire in several applications, including high-resolution…

Cited by 0SourceScholar
2020

Joint Optimization of Sampling Patterns and Deep Priors for Improved Parallel MRI

ICASSP 2020accepted

Multichannel imaging techniques are widely used in MRI to reduce the scan time. These schemes typically perform undersampled acquisition and utilize compressed-sensing based regularized reconstruction algorithms. Model-based deep learning (MoDL) frameworks are now emerging as powerful alternatives t…

Cited by 0SourceScholar
2018

Model-Based Free-Breathing Cardiac MRI Reconstruction Using Deep Learned & Storm Priors: MODL-STORM

ICASSP 2018accepted

We introduce a model-based reconstruction framework with deep learned (DL) and smoothness regularization on manifolds (STORM) priors to recover free breathing and ungated (FBU) cardiac MRI from highly undersampled measurements. The DL priors enable us to exploit the local correlations, while the STO…

Cited by 0SourceScholar
2015

Hyper-spectral impulse denoising: A row-sparse Blind Compressed Sensing formulation

ICASSP 2015accepted

This paper addresses the problem of impulse denoising from hyper-spectral images. Impulse noise is sparse; removing impulse noise requires minimizing an l <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> -norm data fidelity term. Prior studies ha…

Cited by 0SourceScholar