Research Interests

Computational Imaging, Inverse Problems, Statistical Signal Processing, Machine Learning


Ph.D. - Electrical and Computer Engineering, Purdue University (Advisor: Charles A. Bouman) [thesis]

Master of Science - Electrical and Computer Engineering, Purdue University

Bachelor of Technology - Electronics and Communication Engineering, NIT Trichy

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Research Summary

At a high level, my current research aims to aid the development of novel imaging systems (microscopes, cameras, CT scanners, ultrasound systems etc.) by the design of algorithms. The ability to leverage powerful computing platforms using algorithms is greatly expanding the capability of existing imaging systems and will facilitate the design of the next generation of imagers.

My research is focused on the development of algorithms for Computational Imaging systems. In particular, my work has used model-based image reconstruction (MBIR) approaches that combines statistical models for the data and low-dimensional signal models for the underlying quantity to be measured to get the most out of the measurement. The algorithms draw on ideas from diverse fields such as statistical signal processing, image processing, inverse problems and machine learning.

Working closely with inter-disciplinary teams of experimental scientists and image processors, we have demonstrated how these approaches can dramatically improve the imaging capability of electron, X-ray, neutron and ultrasound systems without any additional hardware investments to these expensive instruments. For more information on model-based imaging and the specific applications, please see the respective pages.

Professional Service

Senior Member, IEEE

Associate Editor : IEEE Trans. on Computational Imaging

Area Chair: IEEE ICIP 2019, 2020

Reviewer : IEEE Trans. on Medical Imaging, IEEE Trans. on Image Processing, IEEE Trans. on Multimedia, Optics Express, SIAM Journal on Imaging Science, IEEE Conf. on Acoustics, Speech and Signal Processing (ICASSP), IEEE Conf. on Image Processing (ICIP)

(Elected) Member : IEEE Signal Processing Society - Computational Imaging Technical Committee