Publications

(* equal contribution)

Preprints

• Dynamic MRI Reconstruction Via Dual Deep Priors and Low-Rank Plus Sparse Modeling
  Y. Sun*, S. Gautam*, C. Huang, N. Seiberlich, I. R. Alkhouri, and S. Ravishankar.
  arXiv preprint, 2026
  [arXiv]

• Scan-Adaptive Dynamic MRI Undersampling Using a Dictionary of Efficiently Learned Patterns
  S. Gautam, A. Li, P. Agarwal, A. K. Attili, J. A. Fessler, N. Seiberlich, and S. Ravishankar.
  arXiv preprint, 2026
  [arXiv]

• Learning Scan-Adaptive MRI Undersampling Patterns with Pre-Optimized Mask Supervision
  A. Dhar*, S. Gautam*, and S. Ravishankar.
  arXiv preprint, 2026
  [arXiv]

Peer-Reviewed Journal Articles

• Scan-Adaptive MRI Undersampling Using Neighbor-Based Optimization (SUNO)
  S. Gautam, A. Li, N. Seiberlich, J. A. Fessler, and S. Ravishankar.
  IEEE Transactions on Computational Imaging (TCI), 2025.
  [DOI]

• Learning Robust Features for Scatter Removal and Reconstruction in Dynamic ICF X-Ray Tomography
  S. Gautam, M. L. Klasky, B. T. Nadiga, T. Wilcox, G. Salazar, and S. Ravishankar.
  Optics Express, vol. 33, no. 13, pp. 21741–21758, 2025.
  [DOI]

Peer-Reviewed Conference Papers

• UGoDIT: Unsupervised Group Deep Image Prior Via Transferable Weights
  S. Liang, I. R. Alkhouri, S. Gautam, Q. Qu, and S. Ravishankar.
  Advances in Neural Information Processing Systems (NeurIPS), San Diego, CA, USA, 2025.
  [OpenReview]

• Patient-Adaptive and Learned MRI Data Undersampling Using Neighborhood Clustering
  S. Gautam, A. Li, and S. Ravishankar.
  IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Seoul, South Korea, 2024, pp. 2081–2085.
  [DOI]

• Scatter Removal in Dynamic X-Ray Tomography using Learned Robust Features
  S. Gautam, M. L. Klasky, and S. Ravishankar.
  Computational Optical Sensing and Imaging, Optica, Boston, MA, USA, 2023.

• Residual Encoding Using Neural Field for Image Sequence Modeling
  A. Choudhary, G. Su, and S. Gautam.
  Asilomar Conference on Signals, Systems, and Computers, IEEE, Pacific Grove, CA, USA, 2023.
  [DOI]

• Retrieval of Soil Moisture Using Sliced Regression Inversion Technique
  S. Gautam, S. V. Chidambaram, N. Gunturu, and U. K. Khankhoje.
  Progress in Electromagnetic Research Symposium (PIERS), IEEE, Rome, Italy, 2019.
  [DOI]

Workshop Papers & Presentations (Non-Archival)

• Pre-Optimized Mask-Guided Scan-Adaptive MRI Undersampling
  A. Dhar, S. Gautam, and S. Ravishankar.
  ISMRM Annual Meeting, Cape Town, South Africa, 2026.

• Scan-Adaptive Undersampling for Dynamic Cardiac MRI Using a Collection of Learned Sampling Patterns
  S. Gautam, A. Li, J. A. Fessler, N. Seiberlich, and S. Ravishankar.
  ISMRM Annual Meeting, Cape Town, South Africa, 2026.

• Scan-Adaptive MRI Undersampling Using Neighbor-based Optimization
  S. Gautam, A. Li, N. Seiberlich, J. Fessler, S. Ravishankar.
  IMSI Workshop on Computational Imaging, Chicago, IL, USA, 2024.

• Scatter Removal in Dynamic X-Ray Tomography using Learned Robust Features
  S. Gautam, M. L. Klasky, and S. Ravishankar.
  Machine Learning for Scientific Imaging, Electronic Imaging Symposium, Burlingame, CA, USA, 2024.

• Patient-Adaptive and Learned MRI Data Undersampling Using Neighborhood Clustering
  S. Gautam, A. Li, S. Ravishankar.
  Medical Imaging Meets NeurIPS Workshop, NeurIPS, New Orleans, LA, USA, 2023.

• Patient-Adaptive and Learned MRI Data Undersampling Using Neighborhood Clustering
  S. Gautam, A. Li, S. Ravishankar.
  Midwest Machine Learning Symposium (MMLS), Chicago, IL, USA, 2023.