Professor Ambasamudram Narayanan Rajagopalan

Professor, Indian Institute of Technology Madras

Areas of Interest:

Depth from defocus blur, structure from motion blur, image restoration and super-resolution, video microscopy, image and depth inpainting, image matting, tensor voting, heritage resurrection, face detection and recognition, image forensics, and underwater imaging..


Image Processing, Computer Vision

Consultancy Areas:



Sector Associated With:


Sectors Interested to Offer Service:

Educational / Academic institutions, Industry (Private), Industry (PSUs), R&D Organizations, Government (including funding agencies), Entrepreneurs, Venture Capitalists, Law Enforcement Agencies, Consultancy Firms, Private Agencies, Individuals

Major Professional Contributions:

Prof.Rajagopalan specializes in computer vision and image processing. His research spawns a variety of themes and he has made many key contributions to shape from focus, defocus and stereo, image restoration, super-resolution, face detection, gait recognition, geometric pattern matching, motion de-blurring and higher order statistical learning. He has been instrumental in developing and promoting recovery of depth from defocused images which has become a mainstream shape-from-X method. The book he co-authored in this area has become standard reference for computer vision community..

Professional Experience:

  • Professor, Department of Electrical Engineering,Indian Institute of Technology Madras, 2009 onwards.
  • Associate Professor, Department of Electrical Engineering, Indian Institute of Technology Madras, 2006-2009.
  • Assistant Professor, Department of Electrical Engineering, Indian Institute of Technology Madras, 2000-2006.
  • Humboldt Research Fellow, Technical University of Munich, 2007-2008.
  • Assistant Research Scientist, University of Maryland, USA, 1998-2000..


Blur, defocus, motion, depth, shape, focus, inpainting, superresolution, restoration, deblurring, mosaicking.


Contact Information


Room ESB 307(c)
Department of Electrical Engineering,
Indian Institute of Technology Madras,
Chennai - 600 036
Phone: 044-22574433
Mobile: 09445425739
Fax: 044-22570120

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.



  • B.E, Electronic Engineering, 1989, Nagpur University
  • M. Tech, Electronic Engineering, 1991, Nagpur University
  • PhD, Electrical Engineering, 1998, IIT Bombay


Awards and Major Professional Recognitions

  • Senior Associate Editor, IEEE Transactions on Image Processing, 2016
  • Associate Editor, IEEE Transactions on Image Processing, 2012-2016
  • Associate Editor, IEEE Transactions on pattern analysis and Machine Intelligence, 2007-2011
  • Mid-Career Institute Research & Development Award from among all faculty andacross all Departments of IIT Madras in 2014
  • Received from Department of Atomic Energy-Science Research Council (DAE-SRC),an apex body of DAE, the prestigious DAE-SRC Outstanding Investigator award in2012

Link to Website

INAE Section Affiliated II: Computer Engineering and Information Technology

Year of Election to Fellowship: 2011

Year of Birth: 1968