Saiprasad Ravishankar

Orcid: 0000-0002-5792-5827

According to our database1, Saiprasad Ravishankar authored at least 88 papers between 2008 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

Legend:

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PhD thesis 
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Links

On csauthors.net:

Bibliography

2024
Learning Sparsity-Promoting Regularizers Using Bilevel Optimization.
SIAM J. Imaging Sci., March, 2024

Decoupled Data Consistency with Diffusion Purification for Image Restoration.
CoRR, 2024

Analysis of Deep Image Prior and Exploiting Self-Guidance for Image Reconstruction.
CoRR, 2024

2023
Physics-Driven Machine Learning for Computational Imaging: Part 2 [From the Guest Editors].
IEEE Signal Process. Mag., March, 2023

Sparse-View Cone Beam CT Reconstruction Using Data-Consistent Supervised and Adversarial Learning From Scarce Training Data.
IEEE Trans. Computational Imaging, 2023

Learning Nonlocal Sparse and Low-Rank Models for Image Compressive Sensing: Nonlocal sparse and low-rank modeling.
IEEE Signal Process. Mag., 2023

Physics-Driven Machine Learning for Computational Imaging [From the Guest Editor].
IEEE Signal Process. Mag., 2023

Improving Efficiency of Diffusion Models via Multi-Stage Framework and Tailored Multi-Decoder Architectures.
CoRR, 2023

Robust MRI Reconstruction by Smoothed Unrolling (SMUG).
CoRR, 2023

Enhancing Low-dose CT Image Reconstruction by Integrating Supervised and Unsupervised Learning.
CoRR, 2023

Deep Reinforcement Learning Based Unrolling Network for MRI Reconstruction.
Proceedings of the 20th IEEE International Symposium on Biomedical Imaging, 2023

SMUG: Towards Robust Mri Reconstruction by Smoothed Unrolling.
Proceedings of the IEEE International Conference on Acoustics, 2023

Robust Self-Guided Deep Image Prior.
Proceedings of the IEEE International Conference on Acoustics, 2023

Robust Deep Image Recovery from Sparsely Corrupted and Sub-Sampled Measurements.
Proceedings of the 9th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2023

2022
Exploiting Non-Local Priors via Self-Convolution for Highly-Efficient Image Restoration.
IEEE Trans. Image Process., 2022

Single-Pass Object-Adaptive Data Undersampling and Reconstruction for MRI.
IEEE Trans. Computational Imaging, 2022

Adaptive Local Neighborhood-based Neural Networks for MR Image Reconstruction from Undersampled Data.
CoRR, 2022

Multi-layer Clustering-based Residual Sparsifying Transform for Low-dose CT Image Reconstruction.
CoRR, 2022

Sparse-view Cone Beam CT Reconstruction using Data-consistent Supervised and Adversarial Learning from Scarce Training Data.
CoRR, 2022

LONDN-MRI: Adaptive Local Neighborhood-Based Networks for MR Image Reconstruction from Undersampled Data.
Proceedings of the 19th IEEE International Symposium on Biomedical Imaging, 2022

REPNP: Plug-and-Play with Deep Reinforcement Learning Prior for Robust Image Restoration.
Proceedings of the 2022 IEEE International Conference on Image Processing, 2022

Bilevel Learning of ℓ1 Regularizers with Closed-Form Gradients (BLORC).
Proceedings of the IEEE International Conference on Acoustics, 2022

2021
Unified Supervised-Unsupervised (SUPER) Learning for X-Ray CT Image Reconstruction.
IEEE Trans. Medical Imaging, 2021

Blind Primed Supervised (BLIPS) Learning for MR Image Reconstruction.
IEEE Trans. Medical Imaging, 2021

Physics-Driven Learning of Wasserstein GAN for Density Reconstruction in Dynamic Tomography.
CoRR, 2021

Model-based Reconstruction with Learning: From Unsupervised to Supervised and Beyond.
CoRR, 2021

Labmat: Learned Feature-Domain Block Matching For Image Restoration.
Proceedings of the 2021 IEEE International Conference on Image Processing, 2021

Learning Sparsifying Transforms for Image Reconstruction in Electrical Impedance Tomography.
Proceedings of the IEEE International Conference on Acoustics, 2021

Self-Convolution: A Highly-Efficient Operator for Non-Local Image Restoration.
Proceedings of the IEEE International Conference on Acoustics, 2021

2020
SPULTRA: Low-Dose CT Image Reconstruction With Joint Statistical and Learned Image Models.
IEEE Trans. Medical Imaging, 2020

DECT-MULTRA: Dual-Energy CT Image Decomposition With Learned Mixed Material Models and Efficient Clustering.
IEEE Trans. Medical Imaging, 2020

Online Adaptive Image Reconstruction (OnAIR) Using Dictionary Models.
IEEE Trans. Computational Imaging, 2020

Transform Learning for Magnetic Resonance Image Reconstruction: From Model-Based Learning to Building Neural Networks.
IEEE Signal Process. Mag., 2020

Image Reconstruction: From Sparsity to Data-Adaptive Methods and Machine Learning.
Proc. IEEE, 2020

Two-layer clustering-based sparsifying transform learning for low-dose CT reconstruction.
CoRR, 2020

Multi-layer Residual Sparsifying Transform (MARS) Model for Low-dose CT Image Reconstruction.
CoRR, 2020

Self-Convolution: A Highly-Efficient Operator for Non-Local Image Restoration.
CoRR, 2020

Supervised Learning of Sparsity-Promoting Regularizers for Denoising.
CoRR, 2020

Learned Multi-layer Residual Sparsifying Transform Model for Low-dose CT Reconstruction.
CoRR, 2020

Two-Layer Residual Sparsifying Transform Learning for Image Reconstruction.
Proceedings of the 17th IEEE International Symposium on Biomedical Imaging, 2020

2019
VIDOSAT: High-Dimensional Sparsifying Transform Learning for Online Video Denoising.
IEEE Trans. Image Process., 2019

Multi-layer Residual Sparsifying Transform Learning for Image Reconstruction.
CoRR, 2019

SUPER Learning: A Supervised-Unsupervised Framework for Low-Dose CT Image Reconstruction.
Proceedings of the 2019 IEEE/CVF International Conference on Computer Vision Workshops, 2019

2018
PWLS-ULTRA: An Efficient Clustering and Learning-Based Approach for Low-Dose 3D CT Image Reconstruction.
IEEE Trans. Medical Imaging, 2018

Analysis of Fast Structured Dictionary Learning.
CoRR, 2018

Analysis of Fast Alternating Minimization for Structured Dictionary Learning.
Proceedings of the 2018 Information Theory and Applications Workshop, 2018

Deep dictionary-transform learning for image reconstruction.
Proceedings of the 15th IEEE International Symposium on Biomedical Imaging, 2018

Image-domain material decomposition using data-driven sparsity models for dual-energy CT.
Proceedings of the 15th IEEE International Symposium on Biomedical Imaging, 2018

Learned Mixed Material Models for Efficient Clustering Based Dual-Energy CT Image Decomposition.
Proceedings of the 2018 IEEE Global Conference on Signal and Information Processing, 2018

Learning Multi-Layer Transform Models.
Proceedings of the 56th Annual Allerton Conference on Communication, 2018

2017
Low-Rank and Adaptive Sparse Signal (LASSI) Models for Highly Accelerated Dynamic Imaging.
IEEE Trans. Medical Imaging, 2017

Efficient Sum of Outer Products Dictionary Learning (SOUP-DIL) and Its Application to Inverse Problems.
IEEE Trans. Computational Imaging, 2017

Adaptive sparse modeling and shifted-poisson likelihood based approach for low-dosect image reconstruction.
Proceedings of the 27th IEEE International Workshop on Machine Learning for Signal Processing, 2017

Online data-driven dynamic image restoration using DINO-KAT models.
Proceedings of the 2017 IEEE International Conference on Image Processing, 2017

Efficient online dictionary adaptation and image reconstruction for dynamic MRI.
Proceedings of the 51st Asilomar Conference on Signals, Systems, and Computers, 2017

Physics-driven deep training of dictionary-based algorithms for MR image reconstruction.
Proceedings of the 51st Asilomar Conference on Signals, Systems, and Computers, 2017

2016
Data-Driven Learning of a Union of Sparsifying Transforms Model for Blind Compressed Sensing.
IEEE Trans. Computational Imaging, 2016

Low dose CT image reconstruction with learned sparsifying transform.
Proceedings of the IEEE 12th Image, Video, and Multidimensional Signal Processing Workshop, 2016

LASSI: A low-rank and adaptive sparse signal model for highly accelerated dynamic imaging.
Proceedings of the IEEE 12th Image, Video, and Multidimensional Signal Processing Workshop, 2016

Learning flipping and rotation invariant sparsifying transforms.
Proceedings of the 2016 IEEE International Conference on Image Processing, 2016

Sum of outer products dictionary learning for inverse problems.
Proceedings of the 2016 IEEE Global Conference on Signal and Information Processing, 2016

Efficient learning of dictionaries with low-rank atoms.
Proceedings of the 2016 IEEE Global Conference on Signal and Information Processing, 2016

2015
ℓ<sub>0</sub> Sparsifying Transform Learning With Efficient Optimal Updates and Convergence Guarantees.
IEEE Trans. Signal Process., 2015

Efficient Blind Compressed Sensing Using Sparsifying Transforms with Convergence Guarantees and Application to Magnetic Resonance Imaging.
SIAM J. Imaging Sci., 2015

Online Sparsifying Transform Learning - Part I: Algorithms.
IEEE J. Sel. Top. Signal Process., 2015

Online Sparsifying Transform Learning - Part II: Convergence Analysis.
IEEE J. Sel. Top. Signal Process., 2015

Structured Overcomplete Sparsifying Transform Learning with Convergence Guarantees and Applications.
Int. J. Comput. Vis., 2015

FRIST - Flipping and Rotation Invariant Sparsifying Transform Learning and Applications.
CoRR, 2015

Efficient Sum of Outer Products Dictionary Learning (SOUP-DIL) - The $\ell_0$ Method.
CoRR, 2015

Efficient Sum of Sparse Outer Products Dictionary Learning (SOUP-DIL).
CoRR, 2015

Efficient Blind Compressed Sensing Using Sparsifying Transforms with Convergence Guarantees and Application to MRI.
CoRR, 2015

Video denoising by online 3D sparsifying transform learning.
Proceedings of the 2015 IEEE International Conference on Image Processing, 2015

2014
Adaptive sparse representations and their applications
PhD thesis, 2014

Learning overcomplete sparsifying transforms with block cosparsity.
Proceedings of the 2014 IEEE International Conference on Image Processing, 2014

Doubly sparse transform learning with convergence guarantees.
Proceedings of the IEEE International Conference on Acoustics, 2014

Online sparsifying transform learning for signal processing.
Proceedings of the 2014 IEEE Global Conference on Signal and Information Processing, 2014

2013
Learning Sparsifying Transforms.
IEEE Trans. Signal Process., 2013

Learning Doubly Sparse Transforms for Images.
IEEE Trans. Image Process., 2013

Sparsifying transform learning for Compressed Sensing MRI.
Proceedings of the 10th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2013

Closed-form solutions within sparsifying transform learning.
Proceedings of the IEEE International Conference on Acoustics, 2013

Learning overcomplete sparsifying transforms for signal processing.
Proceedings of the IEEE International Conference on Acoustics, 2013

2012
Learning doubly sparse transforms for image representation.
Proceedings of the 19th IEEE International Conference on Image Processing, 2012

Learning sparsifying transforms for image processing.
Proceedings of the 19th IEEE International Conference on Image Processing, 2012

2011
MR Image Reconstruction From Highly Undersampled k-Space Data by Dictionary Learning.
IEEE Trans. Medical Imaging, 2011

Highly undersampled MRI using adaptive sparse representations.
Proceedings of the 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011

Adaptive sampling design for compressed sensing MRI.
Proceedings of the 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011

2009
Automated feature extraction for early detection of diabetic retinopathy in fundus images.
Proceedings of the 2009 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR 2009), 2009

2008
Multi-stage Contour Based Detection of Deformable Objects.
Proceedings of the Computer Vision, 2008


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