publications | Abijith J. Kamath

2025

DeepFRI: A Deep Plug-and-Play Technique for Finite-Rate-of-Innovation Signal Reconstruction

A. J. Kamath , S. B. Patil , and C. S. Seelamantula

IEEE Transactions on Signal Processing, 2025

@article{kamath2025deepfri,
  author = {Kamath, A. J. and Patil, S. B. and Seelamantula, C. S.},
  title = {DeepFRI: A Deep Plug-and-Play Technique for Finite-Rate-of-Innovation Signal Reconstruction},
  journal = {IEEE Transactions on Signal Processing},
  year = {2025},
  url = {https://ieeexplore.ieee.org/abstract/document/11080367},
  doi = {10.1109/TSP.2025.3589394},
}

Weakly-convex regularizers for magnetic resonance imaging

A. Prabakar , A. S. Bhandiwad , A. J. Kamath , and 1 more author

In International Symposium on Computational Sensing (ISCS) , 2025

Bib

@inproceedings{prabakar2025weakly,
  title = {Weakly-convex regularizers for magnetic resonance imaging},
  author = {Prabakar, A. and Bhandiwad, A.~S. and Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2025},
  booktitle = {International Symposium on Computational Sensing (ISCS)},
}

Neuromorphic Radar for Gesture Recognition

S. S. Yadav , K. S. Akash , A. J. Kamath , and 2 more authors

In IEEE ICASSP Show-and-tell Demo , 2025
Neuromorphic Unlimited Sampling Beyond Bandlimited Signals

S. Kulur , D. Balasubramanian , A. J. Kamath , and 1 more author

In IEEE ICASSP Show-and-tell Demo , 2025

On the Design of Weakly-Convex Regularizers for Solving Linear Inverse Problems

A. J. Kamath , A. S. Bhandiwad , and C. S. Seelamantula

In IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2025

Bib

@inproceedings{kamath2025design,
  author = {Kamath, A.~J. and Bhandiwad, A.~S. and Seelamantula, C.~S.},
  title = {On the Design of Weakly-Convex Regularizers for Solving Linear Inverse Problems},
  booktitle = {IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  year = {2025},
}

Neuromorphic Unlimited Sampling for High-Dynamic-Range Video Acquisition

A. J. Kamath , and C. S. Seelamantula

In IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2025

(invited paper)

Bib

@inproceedings{kamath2025neuromorphic,
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  title = {Neuromorphic Unlimited Sampling for High-Dynamic-Range Video Acquisition},
  booktitle = {IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  year = {2025},
  note = {(invited paper)},
}

2024

Method of Alternating Proximations for Solving Linear Inverse Problems

A. J. Kamath , K. K. R. Nareddy , and C. S. Seelamantula

In Proc. IEEE International Conference on Signal Processing and Communications (SPCOM) , 2024

Bib

@inproceedings{kamath2024method,
  title = {Method of Alternating Proximations for Solving Linear Inverse Problems},
  author = {Kamath, A.~J. and Nareddy, K.~K.~R. and Seelamantula, C.~S.},
  year = {2024},
  booktitle = {Proc. IEEE International Conference on Signal Processing and Communications (SPCOM)},
}

Tight-Frame-Like Analysis-Sparse Recovery Using Nontight Sensing Matrices

K. K. R. Nareddy , A. J. Kamath , and C. S. Seelamantula

SIAM Journal on Imaging Sciences, 2024

Bib PDF

@article{nareddy2024tight,
  title = {Tight-Frame-Like Analysis-Sparse Recovery Using Nontight Sensing Matrices},
  author = {Nareddy, K.~K.~R. and Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2024},
  journal = {SIAM Journal on Imaging Sciences},
  volume = {17},
  number = {3},
  pages = {1587--1618},
  url = {https://doi.org/10.1137/23M1625846},
}

Modulo Sampling Meets Neuromorphic Encoding –– A Hardware Proof

S. Kulur , S. Anand , A. J. Kamath , and 3 more authors

In IEEE ICASSP Show-and-tell Demo , 2024

Image Restoration with Generalized L2 Loss and Convergent Plug-and-play Prior

K. K. R. Nareddy , A. J. Kamath , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2024

Bib

@inproceedings{nareddy2024image,
  title = {Image Restoration with Generalized {$L2$} Loss and Convergent Plug-and-play Prior},
  author = {Nareddy, K.~K.~R. and Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2024},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  doi = {10.1109/ICASSP48485.2024.10446244},
}

Variational Analysis of Adversarial Regularization for Solving Inverse Problems

A. S. Bhandiwad , A. J. Kamath , S. Asokan , and 1 more author

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2024

Bib

@inproceedings{bhandiwad2024variational,
  title = {Variational Analysis of Adversarial Regularization for Solving Inverse Problems},
  author = {Bhandiwad, A.~S. and Kamath, A.~J. and Asokan, S. and Seelamantula, C.~S.},
  year = {2024},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  doi = {10.1109/ICASSP48485.2024.10446385},
}

Neuromorphic Sensing Meets Unlimited Sampling

A. J. Kamath , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2024

Bib

@inproceedings{kamath2024neuromorphic,
  title = {Neuromorphic Sensing Meets Unlimited Sampling},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2024},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  doi = {10.1109/ICASSP48485.2024.10447840}
}

Indian Patent

A Neuromorphic Unlimted Sampling Method and a Plug-and-Play System Thereof

S. Kulur , S. Anand , A. J. Kamath , and 3 more authors

2024

Indian Patent 202441018543 (in process)

Bib

@misc{kulur2024neuromorphic,
  title = {A Neuromorphic Unlimted Sampling Method and a Plug-and-Play System Thereof},
  author = {Kulur, S. and Anand, S. and Kamath, A.~J. and Yadav, S.~S. and Thakur, C.~S. and Seelamantula, C.~S.},
  year = {2024},
  publisher = {Indian Patent},
  note = {Indian Patent 202441018543 (in process)},
}

2023

ArXiv Preprint

Neuromorphic Sampling of Sparse Signals

A. J. Kamath , and C. S. Seelamantula

2023

Bib HTML

@unpublished{kamath2023sparse,
  title = {Neuromorphic Sampling of Sparse Signals},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2023},
  url = {https://arxiv.org/abs/2310.15750},
  eprint = {2310.15750},
  archiveprefix = {arXiv},
  primaryclass = {eess.SP},
}

ArXiv Preprint

Neuromorphic Sampling of Signals in Shift-invariant Spaces

A. J. Kamath , and C. S. Seelamantula

2023

Bib HTML

@unpublished{kamath2023neuromorphic,
  title = {Neuromorphic Sampling of Signals in Shift-invariant Spaces},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2023},
  url = {https://arxiv.org/abs/2306.05103},
  eprint = {2306.05103},
  archiveprefix = {arXiv},
  primaryclass = {eess.SP},
}

Multichannel Time-Encoding of Finite-Rate-of-Innovation Signals

A. J. Kamath , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2023

Bib HTML

@inproceedings{kamath2023multichannel,
  title = {Multichannel Time-Encoding of Finite-Rate-of-Innovation Signals},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2023},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  doi = {10.1109/ICASSP49357.2023.10096150},
}

2022

Differentiate-and-fire Time-Encoding of Finite-Rate-of-Innovation Signals

A. J. Kamath , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2022

Bib HTML PDF

@inproceedings{kamath2022differentiate,
  title = {Differentiate-and-fire Time-Encoding of Finite-Rate-of-Innovation Signals},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2022},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  doi = {10.1109/ICASSP43922.2022.9746159},
}

2021

Neuromorphic Sampling

A. J. Kamath , and C. S. Seelamantula

In Asilomar Conference on Signals, Systems, and Computers (ACSSCS) , 2021

Bib PDF

@inproceedings{kamath2021dftem,
  title = {Neuromorphic Sampling},
  author = {Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2021},
  booktitle = {Asilomar Conference on Signals, Systems, and Computers (ACSSCS)},
}

ArXiv Preprint

Time Encoding of Finite-Rate-of-Innovation Signals

A. J. Kamath , S. Rudresh , and C. S. Seelamantula

2021

Bib HTML

@unpublished{kamath2021time,
  title = {Time Encoding of Finite-Rate-of-Innovation Signals},
  author = {Kamath, A.~J. and Rudresh, S. and Seelamantula, C.~S.},
  year = {2021},
  url = {https://arxiv.org/abs/2107.03344},
  eprint = {2107.03344},
  archiveprefix = {arXiv},
  primaryclass = {eess.SP},
}

2020

A Time-Based Sampling Framework for Finite-Rate-of-Innovation Signals

S. Rudresh , A. J. Kamath , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2020

Bib HTML PDF

@inproceedings{rudresh2020time,
  title = {A Time-Based Sampling Framework for Finite-Rate-of-Innovation Signals},
  author = {Rudresh, S. and Kamath, A.~J. and Seelamantula, C.~S.},
  year = {2020},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  pages = {5585--5589},
}

2019

FRI Modelling of Fourier Descriptors

A. J. Kamath , S. Rudresh , and C. S. Seelamantula

In Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , 2019

Bib HTML PDF

@inproceedings{kamath2019curves,
  title = {{FRI} Modelling of {F}ourier Descriptors},
  author = {Kamath, A.~J. and Rudresh, S. and Seelamantula, C.~S.},
  year = {2019},
  booktitle = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  pages = {5092--5096},
  doi = {10.1109/ICASSP.2019.8682685},
}