Assistant Professor

Dr Subhankar Ghatak

Department of Computer Science and Engineering


  1. Advanced Image and Video Processing
  2. Computer Vision
  3. Optimization Techniques



Gurdas College,
BSc Mathematics (H)


University of Calcutta,


University of Calcutta,


IIIT Bhubaneshwar,


  • 2019-2021 – Assistant Professor – Sarla Birla University, Ranchi, Jharkhand, India
  • 2015-2017 - Assistant Professor, National Institute of Science and Technology, Berhampur, Odisha, India
  • 2011-2012 - Assistant Professor, Swami Vivekananda Institute of Science and Technology, Kolkata, West Bengal, India

Research Interest

  • Object-based Surveillance Video Synopsis generation through various Machine Learning and Deep Learning techniques along with metaheuristic algorithms
  • Secure transmission technique that combines the features of visual cryptography and steganography along with multimedia data hiding

Awards & Fellowships

  • 2019 – 2nd Best Paper award at IPC’19 – IEEE Kolkata Chapter
  • 2013 - Summer Research Fellowship - IASc-INSA-NASI


  • Member, IEEE. Membership ID: 96697151


  • S. Ghatak, S. Rup, A. Behera, B. Majhi and M. N. S. Swamy, "An Improved Tube Rearrangement Strategy for Choice-based Surveillance Video Synopsis Generation". Digital Signal Processing, Elsevier, 132(2022): 10381, Nov. 2022.
  • A. Behera, S. S. Pati, U. Subudhi, S. Ghatak, T. K. Panigrahi, M. H Alsharif, S. Mohsan, "Frequency Stability Analysis of Multi-Renewable Source System with Cascaded PDN-FOPI Controller", Sustainability 14 (20), 13065, Oct. 2022.
  • Behera, T. K. Panigrahi, S. S. Pati, S. Ghatak, S. Ramasubbareddy, A. H. Gandomi, "A hybrid evolutionary algorithm for stability analysis of 2-area multi-non-conventional system with communication delay and energy storage," International Journal of Electrical Power & Energy Systems, Elsevier, 130 (2021): 106823, 2021.
  • S. Ghatak, S. Rup, H. Didwania, and M.N.S. Swamy, "GAN based Efficient Foreground Extraction and HGWOSA based Optimization for Video Synopsis Generation," Digital Signal Processing, Elsevier, 111(2021):102988, Apr. 2021.
  • S. Ghatak, S. Rup, B. Majhi and M. N. S. Swamy, "HSAJAYA: An Improved Optimization Scheme for Consumer Surveillance Video Synopsis Generation," in IEEE Transactions on Consumer Electronics, vol. 66, no. 2, pp. 144-152, May 2020.
  • S. Ghatak, S. Rup, B. Majhi and M.N.S. Swami, "An improved surveillance video synopsis framework: a HSATLBO optimization approach," Multimed Tools Appl 79, pp. 4429-4461, Springer, 2020.
  • Didwania H., Ghatak S., Rup S. (2020), "Multi-frame and Multi-scale Conditional Generative Adversarial Networks for Efficient Foreground Extraction." In: Nain N., Vipparthi S., Raman B. (eds) Computer Vision and Image Processing. CVIP 2019. Communications in Computer and Information Science, vol 1148. Springer, Singapore.
  • Ghatak S., Rup S., "Performance Study of Some Recent Optimization Techniques for Energy Minimization in Surveillance Video Synopsis Framework." In: Mandal J., Bhattacharya K., Majumdar I., Mandal S. (eds) Information, Photonics and Communication. Lecture Notes in Networks and Systems, vol 79, pp-227-237, Springer, Singapore, 2020.
  • Behera A., Pati S. S., Panigrahi T. K., Ghatak S., "Automatic Generation Control Study with Plug-in Electric Vehicle Integrated Multi-area Renewable Power System.", In: Reddy, M.J.B., Mohanta, D.K., Kumar, D., Ghosh, D. (eds) Advances in Smart Grid Automation and Industry 4.0. Lecture Notes in Electrical Engineering, Springer, 2019.
  • S. Ghatak and S. Rup, "Single Camera Surveillance Video Synopsis: A Review and Taxonomy," IEEE 2019 International Conference on Information Technology (ICIT), Bhubaneswar, India, 2019, pp. 483-488.
  • S. Ghatak, Sindhura T., P. Nayak, "Revolutionizing the "DULL" Passport", IEEE International Conference on Recent Trends in Information Technology, ICRTIT 2013, ISBN: 978-1-4799-1022-9©2013 IEEE MIT, Anna University, Chennai. July 25-27, 2013.
  • Mandal, J. K. and Ghatak Subhankar, "Constant Aspect Ratio based (2, 2) Visual Cryptography through Meaningful Shares (CARVCMS)", 1st International Conference on Communication and Industrial Application (ICCIA 2011), December 26-28, 2011, Kolkata, India, ISBN: 978-1-4577-1961-5 ©2011 IEEE, Paper Id 92.
  • Mandal .J .K, Ghatak .S, "A Novel Technique for Secret Communication through Optimal Shares using Visual Cryptography (SCOSVC)", International Symposium on Electronic System Design (ISED) 2011, 978-0-7695-4570-7/11 $26.00 © 2011 IEEE, 19-21 December 2011, Kochi, India, Paper Id 40, pp 329-334.
  • J.K. Mandal, S. Ghatak, "Secret Image / Message Transmission through Meaningful Shares using (2, 2) Visual Cryptography(SITMSVC)", IEEE-International Conference on Recent Trends in Information Technology, ICRTIT 2011, 978-1-4577-0590-8/11/$26.00 ©2011 IEEE, pp 263 - 268, MIT, Anna University, Chennai. June 3-5, 2011.
  • J.K. Mandal, S. Ghatak, "A Novel (2, 2) Visual Cryptographic Technique with Constant Aspect Ratio (VCTCAR)", UGC Sponsored National Symposium on Emerging Trends in Computer Science (ETCS) 2012, Dept. of Computer Science, Barrackpore Rastraguru Surendranath College.
  • Mandal, J. K. and Ghatak Subhankar, "Visual Cryptographic Protocol through Transform based Encoding Embedded into Meaningful Shares (VCPTE)", The International Conference on Information Systems Design and Intelligent Applications-2012(INDIA-2012), US-ISBN: 978-981-07-1158-0, 5-7 Jan, 2012, Computer Society of India, Visakhapatnam 2012, Paper Id 14, pp 58-64.
  • J.K. Mandal, Subhankar Ghatak, "A Novel Technique for Secret Message / Image Transmission through (2, 2) Visual Cryptographic Protocol", Proceeding of International Conference on Computing and Systems ICCS- 2010, pp 175-181, ISBN 93-80813-01-5. Burdwan, November, 2010.

Contact Details