Saiprasad Ravishankar

发表

MR Image Reconstruction From Highly Undersampled k-Space Data by Dictionary Learning

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2011, IEEE Transactions on Medical Imaging.

VIDOSAT: High-Dimensional Sparsifying Transform Learning for Online Video Denoising

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2017, IEEE Transactions on Image Processing.

Learning overcomplete sparsifying transforms with block cosparsity

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2014, 2014 IEEE International Conference on Image Processing (ICIP).

Low-Rank and Adaptive Sparse Signal (LASSI) Models for Highly Accelerated Dynamic Imaging

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2016, IEEE Transactions on Medical Imaging.

Learning Sparsifying Transforms

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2013, IEEE Transactions on Signal Processing.

Online data-driven dynamic image restoration using DINO-KAT models

Saiprasad Ravishankar, Brian E. Moore, S. Ravishankar, 2017, 2017 IEEE International Conference on Image Processing (ICIP).

Efficient Sum of Sparse Outer Products Dictionary Learning (SOUP-DIL) pdf

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2015, ArXiv.

Efficient Blind Compressed Sensing Using Sparsifying Transforms with Convergence Guarantees and Application to Magnetic Resonance Imaging

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2015, SIAM J. Imaging Sci..

DECT-MULTRA: Dual-Energy CT Image Decomposition With Learned Mixed Material Models and Efficient Clustering

Jeffrey A. Fessler, Saiprasad Ravishankar, Yong Long, 2019, IEEE Transactions on Medical Imaging.

Online Sparsifying Transform Learning—Part II: Convergence Analysis

Yoram Bresler, Saiprasad Ravishankar, 2015, IEEE Journal of Selected Topics in Signal Processing.

Analysis of Fast Structured Dictionary Learning

Deanna Needell, Saiprasad Ravishankar, Anna Ma, 2018, Information and inference : a journal of the IMA.

Efficient online dictionary adaptation and image reconstruction for dynamic MRI

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2017, 2017 51st Asilomar Conference on Signals, Systems, and Computers.

Automated feature extraction for early detection of diabetic retinopathy in fundus images

Anurag Mittal, Saiprasad Ravishankar, Arpit Jain, 2009, CVPR.

Image Reconstruction: From Sparsity to Data-Adaptive Methods and Machine Learning

Jeffrey A. Fessler, Jong Chul Ye, Saiprasad Ravishankar, 2019, Proceedings of the IEEE.

Efficient learning of dictionaries with low-rank atoms

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2016, 2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP).

Image-domain multi-material decomposition using a union of cross-material models

Saiprasad Ravishankar, Zhipeng Li, Yong Long, 2019 .

Analysis of Fast Alternating Minimization for Structured Dictionary Learning

Deanna Needell, Saiprasad Ravishankar, Anna Ma, 2018, 2018 Information Theory and Applications Workshop (ITA).

Adaptive sampling design for compressed sensing MRI

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2011, 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Learning overcomplete sparsifying transforms for signal processing

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2013, 2013 IEEE International Conference on Acoustics, Speech and Signal Processing.

Efficient Sum of Outer Products Dictionary Learning (SOUP-DIL) - The $\ell_0$ Method pdf

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2015, ArXiv.

Adaptive sparse representations and their applications

Saiprasad Ravishankar, 2014 .

Sparsifying transform learning for Compressed Sensing MRI

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2013, 2013 IEEE 10th International Symposium on Biomedical Imaging.

LEARNED MIXED MATERIAL MODELS FOR EFFICIENT CLUSTERING BASED DUAL-ENERGY CT IMAGE DECOMPOSITION

Jeffrey A. Fessler, Zhipeng Li, Saiprasad Ravishankar, 2018, 2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP).

PWLS-ULTRA: An Efficient Clustering and Learning-Based Approach for Low-Dose 3D CT Image Reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Xuehang Zheng, 2017, IEEE Transactions on Medical Imaging.

Learning sparsifying transforms for image processing

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2012, 2012 19th IEEE International Conference on Image Processing.

Efficient Sum of Outer Products Dictionary Learning (SOUP-DIL) and Its Application to Inverse Problems

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2015, IEEE Transactions on Computational Imaging.

Physics-driven deep training of dictionary-based algorithms for MR image reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Il Yong Chun, 2017, 2017 51st Asilomar Conference on Signals, Systems, and Computers.

Online sparsifying transform learning for signal processing

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2014, 2014 IEEE Global Conference on Signal and Information Processing (GlobalSIP).

Learning Doubly Sparse Transforms for Images

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2013, IEEE Transactions on Image Processing.

FRIST—flipping and rotation invariant sparsifying transform learning and applications pdf

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2015, ArXiv.

Video denoising by online 3D sparsifying transform learning

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2015, 2015 IEEE International Conference on Image Processing (ICIP).

Multi-layer Residual Sparsifying Transform Learning for Image Reconstruction pdf

Brendt Wohlberg, Saiprasad Ravishankar, Xuehang Zheng, 2019, ArXiv.

Image-domain material decomposition using data-driven sparsity models for dual-energy CT

Jeffrey A. Fessler, Zhipeng Li, Saiprasad Ravishankar, 2018, 2018 IEEE 15th International Symposium on Biomedical Imaging (ISBI 2018).

Low dose CT image reconstruction with learned sparsifying transform

Jeffrey A. Fessler, Saiprasad Ravishankar, Xuehang Zheng, 2016, 2016 IEEE 12th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP).

$\ell_{0}$ Sparsifying Transform Learning With Efficient Optimal Updates and Convergence Guarantees

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2015, IEEE Transactions on Signal Processing.

LASSI: A low-rank and adaptive sparse signal model for highly accelerated dynamic imaging

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2016, 2016 IEEE 12th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP).

Adaptive sparse modeling and shifted-poisson likelihood based approach for low-dosect image reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Yong Long, 2017, 2017 IEEE 27th International Workshop on Machine Learning for Signal Processing (MLSP).

Learning Multi-Layer Transform Models

Brendt Wohlberg, Saiprasad Ravishankar, B. Wohlberg, 2018, 2018 56th Annual Allerton Conference on Communication, Control, and Computing (Allerton).

Highly undersampled MRI using adaptive sparse representations

Yoram Bresler, Saiprasad Ravishankar, 2011, 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro.

Learning doubly sparse transforms for image representation

Yoram Bresler, Saiprasad Ravishankar, 2012, 2012 19th IEEE International Conference on Image Processing.

Doubly sparse transform learning with convergence guarantees

Yoram Bresler, Saiprasad Ravishankar, 2014, 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

Closed-form solutions within sparsifying transform learning

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2013, 2013 IEEE International Conference on Acoustics, Speech and Signal Processing.

Automated feature extraction for early detection of diabetic retinopathy in fundus images

Anurag Mittal, Saiprasad Ravishankar, Arpit Jain, 2009, 2009 IEEE Conference on Computer Vision and Pattern Recognition.

Structured Overcomplete Sparsifying Transform Learning with Convergence Guarantees and Applications

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2015, International Journal of Computer Vision.

Online Sparsifying Transform Learning— Part I: Algorithms

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2015, IEEE Journal of Selected Topics in Signal Processing.

Efficient Blind Compressed Sensing Using Sparsifying Transforms with Convergence Guarantees and Application to Magnetic Resonance Imaging pdf

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2015, SIAM J. Imaging Sci..

Transform Learning for Magnetic Resonance Image Reconstruction: From Model-Based Learning to Building Neural Networks

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2019, IEEE Signal Processing Magazine.

SPULTRA: Low-Dose CT Image Reconstruction With Joint Statistical and Learned Image Models

Jeffrey A. Fessler, Saiprasad Ravishankar, Yong Long, 2018, IEEE Transactions on Medical Imaging.

Learning flipping and rotation invariant sparsifying transforms

Yoram Bresler, Saiprasad Ravishankar, Bihan Wen, 2016, 2016 IEEE International Conference on Image Processing (ICIP).

Deep dictionary-transform learning for image reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Anish Lahiri, 2018, 2018 IEEE 15th International Symposium on Biomedical Imaging (ISBI 2018).

Online Adaptive Image Reconstruction (OnAIR) Using Dictionary Models

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2018, IEEE Transactions on Computational Imaging.

Multi-stage Contour Based Detection of Deformable Objects

Anurag Mittal, Saiprasad Ravishankar, Arpit Jain, 2008, ECCV.

Sum of outer products dictionary learning for inverse problems

Jeffrey A. Fessler, Raj Rao Nadakuditi, Saiprasad Ravishankar, 2016, 2016 IEEE Global Conference on Signal and Information Processing (GlobalSIP).

Data-Driven Learning of a Union of Sparsifying Transforms Model for Blind Compressed Sensing

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2015, IEEE Transactions on Computational Imaging.

Model-based Reconstruction with Learning: From Unsupervised to Supervised and Beyond pdf

Michael T. McCann, Saiprasad Ravishankar, Siqi Ye, 2021, ArXiv.

Sparse-View Cone Beam CT Reconstruction Using Data-Consistent Supervised and Adversarial Learning From Scarce Training Data

Jeffrey A. Fessler, Saiprasad Ravishankar, Anish Lahiri, 2022, IEEE Transactions on Computational Imaging.

Physics-Driven Learning of Wasserstein GAN for Density Reconstruction in Dynamic Tomography pdf

Saiprasad Ravishankar, Trevor Wilcox, Zhishen Huang, 2021, ArXiv.

Multilayer residual sparsifying transform (MARS) model for low-dose CT image reconstruction.

Saiprasad Ravishankar, Yong Long, Xikai Yang, 2021, Medical physics.

Learning Sparsifying Transforms for Image Reconstruction in Electrical Impedance Tomography

Boon Poh Ng, Saiprasad Ravishankar, Bihan Wen, 2021, ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

Local models for scatter estimation and descattering in polyenergetic X-ray tomography.

Michael T. McCann, Saiprasad Ravishankar, Jennifer L. Schei, 2020, Optics express.

Bilevel learning of l1-regularizers with closed-form gradients(BLORC) pdf

Michael T. McCann, Saiprasad Ravishankar, Avrajit Ghosh, 2021, ArXiv.

Labmat: Learned Feature-Domain Block Matching For Image Restoration

Saiprasad Ravishankar, Bihan Wen, Berk Iskender, 2021, ICIP 2021.

Unified Supervised-Unsupervised (SUPER) Learning for X-Ray CT Image Reconstruction

Michael T. McCann, Saiprasad Ravishankar, Yong Long, 2020, IEEE Transactions on Medical Imaging.

Exploiting Non-Local Priors via Self-Convolution for Highly-Efficient Image Restoration

Zhiyuan Zha, Saiprasad Ravishankar, Bihan Wen, 2022, IEEE Transactions on Image Processing.

Blind Primed Supervised (BLIPS) Learning for MR Image Reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Anish Lahiri, 2021, IEEE Transactions on Medical Imaging.

Comparing One-step and Two-step Scatter Correction and Density Reconstruction in X-ray CT

Michael T. McCann, Saiprasad Ravishankar, Marc L. Klasky, 2021 .

Single-pass Object-adaptive Data Undersampling and Reconstruction for MRI pdf

Saiprasad Ravishankar, Zhishen Huang, 2021, ArXiv.

Blind compressed sensing using sparsifying transforms

Yoram Bresler, Saiprasad Ravishankar, Y. Bresler, 2015, 2015 International Conference on Sampling Theory and Applications (SampTA).

Closed-Form Optimal Updates in Transform Learning

Yoram Bresler, Saiprasad Ravishankar, 2013 .

Union of Learned Sparsifying Transforms Based Low-Dose 3 D CT Image Reconstruction

Jeffrey A. Fessler, Saiprasad Ravishankar, Xuehang Zheng, 2017 .