The Spectrum Lab is a research group led by Prof. Chandra Sekhar Seelamantula in the Department of Electrical Engineering at the Indian Institute of Science. The lab focuses on problems in the intersection of computational imaging and machine learning.

Spectrum Lab, past and present, at ICASSP 2025, in Hyderabad, India.
Visiting IISc. Challakere Campus (May 2024)
ICASSP 2019, Brighton, UK (May 2019)
Spectrum Lab @ ISCS 2025, Luxembourg (June 2025)

People


News


Aug 08, 2025 We have two Qualcomm Innovation Fellowships awarded! Congratulations to Nygel, Abhishek and Abijith.
Jun 30, 2025 Our work plug-and-play technique for FRI signal reconstruction, “DeepFRI,” is now on IEEE Transactions on Signal Processing!
Jul 21, 2009
    lab init

Our Research


Selected Publications


  1. ICASSP 25
    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
  2. ICASSP 25
    Diffusion Model Based Image Reconstruction in Lensless Imaging
    A. Verma, V. Boominathan, A. Veeraraghavan, and C. S. Seelamantula
    In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2025
  3. ICASSP 25
    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
  4. ICASSP 25
    Monte Carlo Score Matching for Image Generation
    N. Shetty, and C. S. Seelamantula
    In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2025
  5. ICASSP 25
    Some Intriguing Observations on the Learnt Matrices in Deep Unfolded Networks
    K. K. R. Nareddy, I. Perumal, and C. S. Seelamantula
    In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2025

Funding