Imperial College London


Faculty of EngineeringDepartment of Computing

Senior Lecturer



+44 (0)20 7594 8461s.zafeiriou Website CV




375Huxley BuildingSouth Kensington Campus





Stefanos P. Zafeiriou (M’09) is currently a Senior Lecturer (USA equivalent to Associate Professor) in Pattern Recognition/Statistical Machine Learning  for Computer Vision with the Department of Computing, Imperial College London, London, U.K, and a Distinguishing Research Fellow with University of Oulu under Finish Distinguishing Professor Programme. He was a recipient of the Prestigious Junior Research Fellowships from Imperial College London in 2011 to start his own independent research group. He was the recipient of the President's Medal for Excellence in Research Supervision for 2016. He has received various awards during his doctoral and post-doctoral studies. He currently serves as an Associate Editor of the IEEE Transactions on Cybernetics the Image and Vision Computing Journal. He has been a Guest Editor of over six journal special issues and co-organised over nine workshops/special sessions on face analysis topics in top venues, such as CVPR/FG/ICCV/ECCV (including two very successfully challenges run in ICCV’13 and ICCV’15 on facial landmark localisation/tracking). He has co-authored over 50 journal papers mainly on novel statistical machine learning methodologies applied to computer vision problems, such as 2-D/3-D face analysis, deformable object fitting and tracking, shape from shading, and human behaviour analysis, published in the most prestigious journals in his field of research, such as the IEEE T-PAMI, the International Journal of Computer Vision, the IEEE T-IP, the IEEE T-NNLS, the IEEE T-VCG, and the IEEE T-IFS, and many papers in top conferences, such as CVPR, ICCV, ECCV, ICML. His students are frequent recipients of very prestigious and highly competitive fellowships, such as the Google Fellowship, the Intel Fellowship, and the Qualcomm Fellowship. He has more than 2800 citations to his work, h-index 27. He is the General Chair of BMVC 2017.

Selected Publications

Journal Articles

Bousmalis K, Zafeiriou S, Morency L-P, et al., 2013, Infinite Hidden Conditional Random Fields for Human Behavior Analysis, IEEE Transaction on Neural Networks and Learning Systems, Vol:24, ISSN:2162-237X, Pages:170-177

Liwicki S, Zafeiriou S, Tzimiropoulos G, et al., 2012, Efficient Online Subspace Learning With an Indefinite Kernel for Visual Tracking and Recognition, IEEE Transaction on Neural Networks and Learning Systems, Vol:23, ISSN:2162-237X, Pages:1624-1636

Liwicki S, Tzimiropoulos G, Zafeiriou S, et al., 2013, Euler Principal Component Analysis, International Journal of Computer Vision, Vol:101, ISSN:0920-5691, Pages:498-518

Tzimiropoulos G, Zafeiriou S, Pantic M, 2012, Subspace Learning from Image Gradient Orientations, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol:34, ISSN:0162-8828, Pages:2454-2466

Zafeiriou S, Tzimiropoulos G, Petrou M, et al., 2012, Regularized Kernel Discriminant Analysis With a Robust Kernel for Face Recognition and Verification, IEEE Transaction on Neural Networks and Learning Systems, Vol:23, ISSN:2162-237X, Pages:526-534

Tzimiropoulos G, Argyriou V, Zafeiriou S, et al., 2010, Robust FFT-Based Scale-Invariant Image Registration with Image Gradients, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol:32, ISSN:0162-8828, Pages:1899-1906


Tzimiropoulos G, Zafeiriou S, Pantic M, 2011, Robust and Efficient Parametric Face Alignment, IEEE International Conference on Computer Vision (ICCV), IEEE, Pages:1847-1854

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