Dr. Dimitrios Kollias
Past Member
Biography
Dimitrios Kollias, Fellow of the Higher Education Academy, holder of a Post-Graduate Certificate and member of the IEEE, is currently a Lecturer (equivalent to Assistant Professor) in Artificial Intelligence with the School of Electronic Engineering and Computer Science, Queen Mary University of London.
Dimitrios has been the recipient of the prestigious Teaching Fellowship of Imperial College London (2016-2020). He has obtained the Ph.D. from the Department of Computing, Imperial College London (2020), where he was a member of the iBUG group. Prior to this, he received the M.Sc. in Advanced Computing from the Department of Computing of Imperial College London (2016) and the Diploma/M.Sc. in Electrical and Computer Engineering from the ECE School of the National Technical University of Athens, Greece (2015).
He has been a Senior Lecturer in Artificial Intelligence with the School of Computing and Mathematical Sciences, University of Greenwich. Additionally, he has worked as Research Scientist at Deep Render Ltd on deep learning based image/video compression; he has been Consultant at FaceSoft Ltd on deep learning based affect recognition and generation; he has has been Consultant at Cogitat Ltd on decoding people’s music-listening brain states; he has collaborated with Realeyes Company on machine learning based affect and attention methodologies. Two patents have been generated and filed.
His research interests span the areas of Machine and Deep Learning, Artificial Intelligence, Data Science, Computer Vision, Behaviour Analysis and Affect Recognition, Human Computer Interaction, Medical Imaging and Healthcare, Big Data Analysis and Social Networks.
For an up-to-date list of publications, you can check his google scholar:
https://scholar.google.co.uk/citations?user=360Gmc0AAAAJ
Face analysis:
3D facial expression modelling and recognition,
AU detection,
Affect analysis
Audiovisual human behaviour analysis:
Audiovisual human behaviour data capture,
Affect analysis
Human behaviour synthesis
Facial behaviour synthesis
Publications
Journal articles
Deep Neural Network Augmentation: Generating Faces for Affect Analysis
D. Kollias, S. Cheng, E. Ververas, I. Kotsia, S. Zafeiriou. International Journal of Computer Vision. 2020.
author = {I. Kotsia and S. Zafeiriou and S. Cheng and E. Ververas and D. Kollias},
journal = {International Journal of Computer Vision},
title = {Deep Neural Network Augmentation: Generating Faces for Affect Analysis},
year = {2020},
}
Deep Affect Prediction in-the-Wild: Aff-Wild Database and Challenge, Deep Architectures, and Beyond
D. Kollias, P. Tzirakis, M. A. Nicolaou, A. Papaioannou, G. Zhao, B. Schuller, I. Kotsia, S. Zafeiriou. International Journal of Computer Vision. feb 2019.
author = {D. Kollias and P. Tzirakis and M. A. Nicolaou and A. Papaioannou and G. Zhao and B. Schuller and I. Kotsia and S. Zafeiriou},
journal = {International Journal of Computer Vision},
month = {feb},
publisher = {Springer Nature},
title = {Deep Affect Prediction in-the-Wild: Aff-Wild Database and Challenge, Deep Architectures, and Beyond},
url = {https://doi.org/10.1007/s11263-019-01158-4},
year = {2019},
}
Conference articles
The 6th Affective Behavior Analysis in-the-wild (ABAW) Competition
D. Kollias, P. Tzirakis, A. Cowen, S. Zafeiriou, C. Shao, G. Hu. IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR). 2024.
author = {D. Kollias and P. Tzirakis and A. Cowen and S. Zafeiriou and C. Shao and G. Hu},
booktitle = {IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR)},
journal = {IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR)},
title = {The 6th Affective Behavior Analysis in-the-wild (ABAW) Competition},
year = {2024},
}
MimicME: A Large Scale Diverse 4D Database for Facial Expression Analysis
A. Papaioannou, B. Gecer, S. Cheng, G. Chrysos, J. Deng, E. Fotiadou, C. Kampouris, D. Kollias, S. Moschoglou, K. Songsri-in, S. Ploumpis, G. Trigeorgis, P. Tzirakis, E. Ververas, Y. Zhou, A. Ponniah, A. Roussos, S. Zafeiriou. ECCV. 2022.
booktitle = {ECCV},
title = {MimicME: A Large Scale Diverse 4D Database for Facial Expression Analysis},
year = {2022},
}
Expression, Affect, Action Unit Recognition: Aff-Wild2, Multi-Task Learning and ArcFace
D. Kollias, S. Zafeiriou. British Machine Vision Conference, Cardiff. September 2019.
author = {D. Kollias and S. Zafeiriou},
booktitle = {British Machine Vision Conference, Cardiff},
month = {September},
title = {Expression, Affect, Action Unit Recognition: Aff-Wild2, Multi-Task Learning and ArcFace},
year = {2019},
}
Training Deep Neural Networks with Different Datasets In-the-wild: The Emotion Recognition Paradigm
D. Kollias, S. Zafeiriou. 2018 International Joint Conference on Neural Networks (IJCNN). IEEE, jul 2018.
author = {D. Kollias and S. Zafeiriou},
booktitle = {2018 International Joint Conference on Neural Networks (IJCNN)},
month = {jul},
publisher = {IEEE},
title = {Training Deep Neural Networks with Different Datasets In-the-wild: The Emotion Recognition Paradigm},
url = {https://doi.org/10.1109%2Fijcnn.2018.8489340},
year = {2018},
}
Photorealistic Facial Synthesis in the Dimensional Affect Space
D. Kollias, S. Cheng, M. Pantic, S. Zafeiriou. European Conference on Computer Vision. Springer, pp. 475 - 491, 2018.
author = {D. Kollias and S. Cheng and M. Pantic and S. Zafeiriou},
pages = {475--491},
booktitle = {European Conference on Computer Vision},
organization = {Springer},
title = {Photorealistic Facial Synthesis in the Dimensional Affect Space},
year = {2018},
}
Aff-Wild: Valence and Arousal `In-the-Wild' Challenge
S. Zafeiriou, D. Kollias, M. A. Nicolaou, A. Papaioannou, G. Zhao, I. Kotsia. 2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW). IEEE, jul 2017.
author = {S. Zafeiriou and D. Kollias and M. A. Nicolaou and A. Papaioannou and G. Zhao and I. Kotsia},
booktitle = {2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)},
month = {jul},
publisher = {IEEE},
title = {Aff-Wild: Valence and Arousal `In-the-Wild' Challenge},
url = {https://doi.org/10.1109%2Fcvprw.2017.248},
year = {2017},
}
Recognition of Affect in the Wild Using Deep Neural Networks
D. Kollias, M. A. Nicolaou, I. Kotsia, G. Zhao, S. Zafeiriou. 2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW). IEEE, jul 2017.
author = {D. Kollias and M. A. Nicolaou and I. Kotsia and G. Zhao and S. Zafeiriou},
booktitle = {2017 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)},
month = {jul},
publisher = {IEEE},
title = {Recognition of Affect in the Wild Using Deep Neural Networks},
url = {https://doi.org/10.1109%2Fcvprw.2017.247},
year = {2017},
}