"If we knew what it was we were doing, it would not be called research, would it?" - Albert Einstein

Postdoctoral Research Fellow
Johns Hopkins University

Previous Affiliations

  Postdoctoral Research Fellow                  Visiting Researcher                         PhD Student
(October 2014 - January 2016)              (October 2013 - August 2014)              (August 2009 - August 2013)

Brief Bio

Vittal Premachandran is a Postdoctoral Researcher at the Johns Hopkins University. He obtained the B.E. degree in Computer Science from Visveswaraya Technological University, India, in 2009, graduating with a First Class with Distinction. He received his Ph.D degree, also in Computer Science, from Nanyang Technological University, Singapore, in 2014. He has previously worked as a Postdoctoral Research Fellow at University of California, Los Angeles, and a visiting researcher at National University of Singapore.

His research interests span computer vision and machine learning, with a focus on semantic analysis of scenes. His work has received the Best Student Paper award at the IEEE International Conference on Image Processing (ICIP) in 2013.

Talks and Lectures


  • Deep Residual Learning for Instrument Segmentation in Robotic Surgery
    Daniil Pakhomov, Vittal Premachandran, Max Allan, Mahdi Azizian, Nassir Navab [arXiv]

  • Discovering Internal Representations from Object-CNNs Using Population Encoding
    Jianyu Wang, Zhishuai Zhang, Cihang Xie, Vittal Premachandran, Alan Yuille [arXiv]

  • Journal Publications

  • Empirical Minimum Bayes Risk Prediction
    Vittal Premachandran, Daniel Tarlow, Alan L. Yuille, Dhruv Batra
    Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2016,

  • Perceptually Motivated Shape Context Which Uses Shape Interiors
    Vittal Premachandran and Ramakrishna Kakarala
    Pattern Recognition, 2013,

  • Conference Publications

    Ph.D Thesis



    X@jhu.edu ; X=vittalp
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