I am a Postdoctoral Associate with Bill Freeman at MIT’s CSAIL Lab.

In June 2013, I finished my PhD from the Computer Science department at New York University. My research interests are in Computer Vision, Machine Learning, Scientific Computing. My advisor was Rob Fergus. I was awarded a Microsoft Research PhD Fellowship for 2010-2011 and a Dean’s Dissertation Fellowship for 2012-2013 from the Graduate School of Arts and Sciences.



  • D. Eigen, D. Krishnan and R. Fergus. Restoring An Image Taken Through a Window Covered with Dirt or Rain. To appear in ICCV 2013. Paper and code coming soon.
  • D. Krishnan, R. Fattal and R. Szeliski. Efficient Preconditioners for Laplacians Arising in Computer Graphics and Computational Photography. SIGGRAPH 2013.
  • D. Krishnan, R. Szeliski. Multigrid and Multilevel Preconditioners for Computational Photography. SIGGRAPH Asia 2011.
  • D. Krishnan, T. Tay, R. Fergus. Blind Deconvolution using a Normalized Sparsity Measure. CVPR 2011.
  • M. Zeiler, D. Krishnan, G. Taylor, R. Fergus. Deconvolutional Networks. CVPR 2010.
  • D. Krishnan, R. Fergus. Fast Image Deconvolution using Hyper-Laplacian Priors . Neural Information Processing Systems 2009.
  • D. Krishnan, R. Fergus.  Dark Flash Photography. To appear in Proceedings of SIGGRAPH, August 2009.
  • D. Krishnan, Q. V. Pham, A. Y. Yip. A primal-dual active-set algorithm for bilaterally constrained total variation deblurring and piecewise constant Mumford-Shah segmentation problems. Advances in Computational Mathematics. Published Online, September 2008.
  • D. Krishnan, P. Lin, A. Y. Yip. A primal-dual active-set method for non-negativity constrained total variation deblurring problems. IEEE Transactions on Image Processing, 16(11), pp. 2766-2777, November 2007.
  • D. Krishnan, P. Lin, X. C. Tai. An efficient operator-splitting method for noise removal in images. Communications in Computational Physics, 1(5), pp. 847-858, October 2006.
  • D. Krishnan, M. N. Chong, S. Kalra. On the computational aspects of Gibbs-Markov random field modelling of missing data in image sequences. IEEE Transactions on Image Processing, 8(8), pp. pp. 1139-1142, August 1999.
  • S. Kalra, D. Krishnan, M. N. Chong. A MRF based model based scheme for accurate detection and adaptive interpolation of missing data in highly corrupted  image sequences. IEEE Conference on Image Processing, 1999.
  • M. N. Chong, D. Krishnan. An edge-preserving MRF model for the detection of missing data in image sequences. IEEE Transactions on Signal Processing, 5(4), pp. 81-83, April 1998.
  • Talks

  • Invited Talk - Fast Image Deconvolution Using Hyper Laplacian Priors. Group Meeting of Fredo Durand’s graphics group, MIT (CSAIL), October 22, 2010.
  • Invited Talk - Dark Flash Photography and Fast Image Deconvolution Using Hyper Laplacian Priors. Rick Szeliski’s Interactive Visual Media Group, Microsoft Research, Seattle, December 3, 2009.
  • Dark Flash Photography. SIGGRAPH 2009, New Orleans, August 7, 2009.
  • Dark Flash Photography. Group meeting of Laboratory for Computational Vision, NYU, May 28, 2009.
  • Dark Flash Photography. Group meeting of Bill Freeman’s Vision Group, MIT (CSAIL), May 19, 2009.
  • Dark Flash Photography. Graphics Seminar, NYU, May 8, 2009.
  • Entrepreneurship/Consulting

  • Co-founder and CTO of Nirvana Digital, later acquired by Black Magic Designs. Nirvana Digital developed Revival, a film and video restoration system, now used in post-production companies worldwide.
  • Angel Investor/Technical Advisor to Aniika.
  • Patent Filed: Dark Flash Photography

    Professional Activities: Reviewer for the following conferences and journals

  • IEEE Transactions on Image Processing.
  • IEEE Computer Vision and Pattern Recognition (CVPR).
  • IEEE Transactions Pattern Analysis and Machine Intelligence (PAMI).
  • ACM Transactions on Graphics (SIGGRAPH) and SIGGRAPH Asia.
  • Journal for Visual Comm. and Image Representation (JVCI).
  • Neural Information Processing Systems (NIPS).
  • European Conference on Computer Vision (ECCV).
  • Office 12th Floor, 715 Broadway, New York, NY 10003, USA.

    Email dilip@cs.nyu.edu