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Dr. Stefanos Vrochidis

Researcher B’

  • Dipl. Electrical & Computer Engineering
  • MSc in Radio Frequency Communication Systems
  • PhD, Interactive Video Retrieval Using Implicit User Feedback, Queen Mary University of London (2013)

Dr. Stefanos Vrochidis received the Diploma degree in Electrical Engineering from Aristotle University of Thessaloniki, Greece and the MSc degree in Radio Frequency Communication Systems from University of Southampton, in 2000 and 2001 respectively. He also holds a PhD degree on Interactive video retrieval using implicit user feedback, Queen Mary University of London (2013). He is a Senior Researcher (Grade Β’) at the Information Technologies Institute (ΙΤΙ) of the Centre for Research and Technology Hellas (CERTH).

He has participated in a number of EC-funded and National ICT projects (e.g. ELU, PATExpert, REACH, PESCaDO, CHORUS) and his research interests include multimedia analysis, indexing and retrieval, human computer interaction in multimedia retrieval, patent search, environmental and learning applications. His scientific work has been published in peer-reviewed journals, international conferences and book chapters.

Recent Publications

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  • Ε. Batziou, Κ. Ioannidis, Ι. Patras, S. Vrochidis, I. Kompatsiaris, "HDD-Unet: A Unet-based architecture for low-light image enhancement.", Image and Vision Computing and Vision Computing, December 2025.
  • V. Papaioannou, D. Valsamis, C. G. E. Anagnostopoulos, A. Moumtzidou, I. Gialampoukidis, S. Vrochidis, I. Kompatsiaris, "Hydrodynamic simulation of the Pineios River during the Daniel flood using the Delft3D-FLOW model.", Advances in Civil Engineering Technology, vol. 7, no. 1, December 17, 2025, doi: 10.31031/ACET.2025.07.000653
  • A. Kosmatopoulos, T. Skouras, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Efficient Multi-Criteria Important Node Identification via Ego-Network Approximation.", in Proceedings of the 12th International Conference on Social Networks Analysis, Management and Security (SNAMS), Vienna, Austria, November 25-28, 2025, Best Paper Award.
  • S. Pasios, K. Gkountakos, K. Ioannidis, T. Tsikrika, S. Vrochidis, I. Kompatsiaris, "Photorealistic Synthetic Crowds Simulation in Indoor environments (PSCS-I): a novel synthetic dataset for realistic simulation of crowd panic and violence behaviors.", IEEE Access, pp. 1-1, November 2025, doi: 10.1109/ACCESS.2025.3636727
  • J. E. Gonçalves, R. Rocco, M. Sitzoglou, N. Michail, D. Kupper, S. Grafakos, M. Djuraskovic, C. Veeckman, N. Pantelidis, A. Gkatsikos, S. Vrochidis, A. Dieguez-Seoane, A. Jover, M. Guerrero-Hidalga, A. Jelmini, T. Dommerholt, S. Amin, C. Visconti, L. Francis, "Spatial justice in participatory planning: an integrated framework andlessons from practice.", Front. Sustain. Cities, vol. 7, November 25, 2025, doi: 10.3389/frsc.2025.1656745
Contact
Dr. Stefanos Vrochidis
Building A - Office 1.4

Information Technologies Institute
Centre of Research & Technology - Hellas
6th km Harilaou - Thermis, 57001, Thermi - Thessaloniki
Tel.: +30 2311 257754
Fax: +30 2310 474128
Email: stefanos@iti.gr