Irene Kotsia

Dr. Irene Kotsia

Position:

Affiliated Academic

Email:

Biography

Irene Kotsia received the diploma and PhD in Informatics from the Aristotle University o Thessaloniki, Greece in 2002 and 2008, respectively.  From February  2008 to August 2009 she was a researcher and then a postdoctoral researcher with the Informatics and Telematics Institute, CERTH, Thessaloniki, Greece. Since September 2009 she has been a Research Associate with the Multimedia and Vision Research group (MMV) in School of Electronic Engineering and Computer Science, Queen Mary University of London. Since January 2012 she has been a part time research associate at i-bug group at Department of Computing, Imperial College London. She has also been awarded a three year Fellowship Co-Financed by the European Union and the Greek State, Operational Programme ‘Education and Lifelong Learning’, ‘Supporting Postodoctoral Researchers’.  She has coauthored many journal publications in a number of scientific journals, including IEEE Transactions on Image Processing, IEEE Transactions on Neural Networks and IEEE Transactions on Forensics and Security. Her current research interests lie in the areas of image and signal processing, statistical pattern recognition especially for human actions localization and recognition, facial expression recognition from static images and image sequences as well as in the areas of graphics and animation.  


Research Themes:

Body gesture analysis:
Spatiotemporal Salient point detection

Audiovisual human behaviour analysis:
Audiovisual human behaviour data capture

HCI:
Integration platform for development of human-centered interfaces

Human behaviour synthesis
Facial behaviour synthesis

Projects:

MAHNOB

Publications

Book chapters

Unconstrained Face Recognition

S. Zafeiriou, I. Kotsia, M. Pantic. Face Recognition in Adverse Conditions. IGI Global, Hershey, PA, USA, pp. 16 - 37, 2014.

Bibtex reference [hide]
@inbook{unconstrained_face_rec,
    author = {S. Zafeiriou and I. Kotsia and M. Pantic},
    pages = {16--37},
    address = {Hershey, PA, USA},
    booktitle = {Face Recognition in Adverse Conditions},
    publisher = {IGI Global},
    title = {Unconstrained Face Recognition},
    year = {2014},
}
Endnote reference [hide]
%0 Book Section
%A Zafeiriou, S.
%A Kotsia, I.
%A Pantic, M.
%B Face Recognition in Adverse Conditions
%D 2014
%I IGI Global
%C Hershey, PA, USA
%F unconstrained_face_rec
%P 16-37

Journal articles

ArcFace: Additive Angular Margin Loss for Deep Face Recognition

J. Deng, J. Guo, J. Yang, N. Xue, I. Kotsia, S. Zafeiriou. TPAMI. 2021.

Bibtex reference [hide]
@article{arcface2021tpami,
    author = {J. Deng and J. Guo and J. Yang and N. Xue and I. Kotsia and S. Zafeiriou},
    journal = {TPAMI},
    title = {ArcFace: Additive Angular Margin Loss for Deep Face Recognition},
    year = {2021},
}
Endnote reference [hide]

Fast-GANFIT: Generative Adversarial Network for High Fidelity 3D Face Reconstruction

B. Gecer, S. Ploumpis, I. Kotsia, S. Zafeiriou. IEEE Transactions on Pattern Analysis and Machine Intelligence. 2021.

Bibtex reference [hide]
@article{gecer2021fast,
    author = {B. Gecer and S. Ploumpis and I. Kotsia and S. Zafeiriou},
    journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
    publisher = {IEEE},
    title = {Fast-GANFIT: Generative Adversarial Network for High Fidelity 3D Face Reconstruction},
    year = {2021},
}
Endnote reference [hide]

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.

Bibtex reference [hide]
@article{s11263-020-01304-3,
    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},
}
Endnote reference [hide]

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.

Bibtex reference [hide]
@article{Kollias_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},
}
Endnote reference [hide]

The Menpo Benchmark for Multi-pose 2D and 3D Facial Landmark Localisation and Tracking

J. Deng, A. Roussos, G. Chrysos, E. Ververas, I. Kotsia, J. Shen, S. Zafeiriou. IJCV. 2018.

Bibtex reference [hide]
@article{ijcvmenpo,
    author = {J. Deng and A. Roussos and G. Chrysos and E. Ververas and I. Kotsia and J. Shen and S. Zafeiriou},
    journal = {IJCV},
    publisher = {IJCV},
    title = {The Menpo Benchmark for Multi-pose 2D and 3D Facial Landmark Localisation and Tracking},
    year = {2018},
}
Endnote reference [hide]

Tensor Learning for Regression

W. Guo, I. Kotsia, I. Patras. IEEE Transactions on Image Processing. 21: pp. 816 - 827, February 2012.

Bibtex reference [hide]
@article{kotsia_tip2012,
    pages = {816--827},
    journal = {IEEE Transactions on Image Processing},
    month = {February},
    title = {Tensor Learning for Regression},
    volume = {21},
    year = {2012},
}
Endnote reference [hide]
%0 Journal Article
%T Tensor Learning for Regression
%J IEEE Transactions on Image Processing
%D 2012
%8 February
%V 21
%F kotsia_tip2012
%P 816-827

Novel multiclass classifiers based on the minimization of the within-class variance

I. Kotsia, S. Zafeiriou, I. Pitas. IEEE Transactions on Neural Networks. 20(1): pp. 14 - 34, 2009.

Bibtex reference [hide]
@article{kotsia2009novel,
    author = {I. Kotsia and S. Zafeiriou and I. Pitas},
    pages = {14--34},
    journal = {IEEE Transactions on Neural Networks},
    number = {1},
    title = {Novel multiclass classifiers based on the minimization of the within-class variance},
    volume = {20},
    year = {2009},
}
Endnote reference [hide]
%0 Journal Article
%T Novel multiclass classifiers based on the minimization of the within-class variance
%A Kotsia, I.
%A Zafeiriou, S.
%A Pitas, I.
%J IEEE Transactions on Neural Networks
%D 2009
%V 20
%N 1
%F kotsia2009novel
%P 14-34

An analysis of facial expression recognition under partial facial image occlusion

I. Kotsia, I. Buciu, I. Pitas. Elsevier Image and Vision Computing . 26: pp. 1052 - 1067, July 2008.

Bibtex reference [hide]
@article{kotsia_ivc2008,
    pages = {1052--1067},
    journal = {Elsevier Image and Vision Computing },
    month = {July},
    title = {An analysis of facial expression recognition under partial facial image occlusion},
    volume = {26},
    year = {2008},
}
Endnote reference [hide]
%0 Journal Article
%T An analysis of facial expression recognition under partial facial image occlusion
%J Elsevier Image and Vision Computing
%D 2008
%8 July
%V 26
%F kotsia_ivc2008
%P 1052-1067

Texture and shape information fusion for facial expression and facial action unit recognition

I. Kotsia, S. Zafeiriou, I. Pitas. Pattern Recognition. 41(3): pp. 833 - 851, 2008.

Bibtex reference [hide]
@article{kotsia2008texture,
    author = {I. Kotsia and S. Zafeiriou and I. Pitas},
    pages = {833--851},
    journal = {Pattern Recognition},
    number = {3},
    title = {Texture and shape information fusion for facial expression and facial action unit recognition},
    volume = {41},
    year = {2008},
}
Endnote reference [hide]
%0 Journal Article
%T Texture and shape information fusion for facial expression and facial action unit recognition
%A Kotsia, I.
%A Zafeiriou, S.
%A Pitas, I.
%J Pattern Recognition
%D 2008
%V 41
%N 3
%F kotsia2008texture
%P 833-851

Facial Expression Recognition using Geometric Deformation Vectors and Support Vector Machines

I. Kotsia, I. Pitas. IEEE Transactions on Image Processing. pp. 172 - 187, January 2007.

Bibtex reference [hide]
@article{kotsia_tip2007,
    pages = {172--187},
    journal = {IEEE Transactions on Image Processing},
    month = {January},
    title = {Facial Expression Recognition using Geometric Deformation Vectors and Support Vector Machines},
    year = {2007},
}
Endnote reference [hide]
%0 Journal Article
%T Facial Expression Recognition using Geometric Deformation Vectors and Support Vector Machines
%J IEEE Transactions on Image Processing
%D 2007
%8 January
%F kotsia_tip2007
%P 172-187

Synthesis of Expressive Facial Animations: A Multimodal Caricatural Mirror

O. Martin, I. Kotsia, A. Savran, J. Adell, A. Huerta. Journal on Multimodal Interfaces. 1(1): pp. 21 - 30, March 2007.

Bibtex reference [hide]
@article{kotsia_jmi2007,
    pages = {21--30},
    journal = {Journal on Multimodal Interfaces},
    month = {March},
    number = {1},
    title = {Synthesis of Expressive Facial Animations: A Multimodal Caricatural Mirror},
    volume = {1},
    year = {2007},
}
Endnote reference [hide]
%0 Journal Article
%T Synthesis of Expressive Facial Animations: A Multimodal Caricatural Mirror
%J Journal on Multimodal Interfaces
%D 2007
%8 March
%V 1
%N 1
%F kotsia_jmi2007
%P 21-30

A novel discriminant non-negative matrix factorization algorithm with applications to facial image characterization problems

I. Kotsia, S. Zafeiriou, I. Pitas. IEEE Transactions on Information Forensics and Security. 2(3): pp. 588 - 595, 2007.

Bibtex reference [hide]
@article{kotsia2007novel,
    author = {I. Kotsia and S. Zafeiriou and I. Pitas},
    pages = {588--595},
    journal = {IEEE Transactions on Information Forensics and Security},
    number = {3},
    title = {A novel discriminant non-negative matrix factorization algorithm with applications to facial image characterization problems},
    volume = {2},
    year = {2007},
}
Endnote reference [hide]
%0 Journal Article
%T A novel discriminant non-negative matrix factorization algorithm with applications to facial image characterization problems
%A Kotsia, I.
%A Zafeiriou, S.
%A Pitas, I.
%J IEEE Transactions on Information Forensics and Security
%D 2007
%V 2
%N 3
%F kotsia2007novel
%P 588-595

Conference articles

RetinaFace: Single-Shot Multi-Level Face Localisation in the Wild

J. Deng, J. Guo, E. Ververas, I. Kotsia, S. Zafeiriou. CVPR. 2020.

Bibtex reference [hide]
@inproceedings{retinaface2020deng,
    author = {J. Deng and J. Guo and E. Ververas and I. Kotsia and S. Zafeiriou},
    booktitle = {CVPR},
    title = {RetinaFace: Single-Shot Multi-Level Face Localisation in the Wild},
    year = {2020},
}
Endnote reference [hide]

Dense 3D Face Decoding over 2500FPS: Joint Texture & Shape Convolutional Mesh Decoders

Y. Zhou, J. Deng, I. Kotsia, S. Zafeiriou. CVPR. 2019.

Bibtex reference [hide]
@inproceedings{yuxiang2019,
    author = {Y. Zhou and J. Deng and I. Kotsia and S. Zafeiriou},
    booktitle = {CVPR},
    title = {Dense 3D Face Decoding over 2500FPS: Joint Texture & Shape Convolutional Mesh Decoders},
    year = {2019},
}
Endnote reference [hide]

GANFIT: Generative Adversarial Network Fitting for High Fidelity 3D Face Reconstruction

B. Gecer, S. Ploumpis, I. Kotsia, S. Zafeiriou. CVPR 2019. 2019.

Bibtex reference [hide]
@inproceedings{baris2019,
    author = {B. Gecer and S. Ploumpis and I. Kotsia and S. Zafeiriou},
    booktitle = {CVPR 2019},
    title = {GANFIT: Generative Adversarial Network Fitting for High Fidelity 3D Face Reconstruction},
    year = {2019},
}
Endnote reference [hide]

4DFAB: A Large Scale 4D Database for Facial Expression Analysis and Biometric Applications

S. Cheng, I. Kotsia, M. Pantic, S. Zafeiriou. 2018 IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2018). Salt Lake City, Utah, US, June 2018.

Bibtex reference [hide]
@inproceedings{ChengCVPR18,
    author = {S. Cheng and I. Kotsia and M. Pantic and S. Zafeiriou},
    address = {Salt Lake City, Utah, US},
    booktitle = {2018 IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2018)},
    month = {June},
    title = {4DFAB: A Large Scale 4D Database for Facial Expression Analysis and Biometric Applications},
    year = {2018},
}
Endnote reference [hide]

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.

Bibtex reference [hide]
@inproceedings{kollias_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},
}
Endnote reference [hide]

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.

Bibtex reference [hide]
@inproceedings{Kollias_2017_ii,
    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},
}
Endnote reference [hide]

Dynamic Probabilistic Linear Discriminant Analysis For Video Classification

A. Fabris, M. A. Nicolaou, I. Kotsia, S. Zafeiriou. ICASSP 2017, accepted for publication. March 2017.

Bibtex reference [hide]
@inproceedings{dplda,
    booktitle = {ICASSP 2017, accepted for publication},
    month = {March},
    title = {Dynamic Probabilistic Linear Discriminant Analysis For Video Classification},
    year = {2017},
}
Endnote reference [hide]

Facial Affect ``in-the-wild": A survey and a new database

S. Zafeiriou, A. Papaioannou, I. Kotsia, M. A. Nicolaou, G. Zhao. International Conference on Computer Vision and Pattern Recognition (CVPR) Workshops, Affect "in-the-wild" Workshop. June 2016.

Bibtex reference [hide]
@inproceedings{zafeiriou_in_the_wild_2016,
    author = {S. Zafeiriou and A. Papaioannou and I. Kotsia and M. A. Nicolaou and G. Zhao},
    booktitle = {International Conference on Computer Vision and Pattern Recognition (CVPR) Workshops, Affect "in-the-wild" Workshop},
    month = {June},
    title = {Facial Affect ``in-the-wild": A survey and a new database},
    year = {2016},
}
Endnote reference [hide]

On One-Shot Kernels: Explicit Feature Maps and Properties

S. Zafeiriou, I. Kotsia. Proceedings of IEEE Int’l Conf. on Computer Vision (ICCV 2013), Accepted. 2013.

Bibtex reference [hide]
@inproceedings{zaf_kot_one_shot,
    author = {S. Zafeiriou and I. Kotsia},
    booktitle = {Proceedings of IEEE Int’l Conf. on Computer Vision (ICCV 2013), Accepted},
    title = {On One-Shot Kernels: Explicit Feature Maps and Properties},
    year = {2013},
}
Endnote reference [hide]
%0 Conference Proceedings
%T On One-Shot Kernels: Explicit Feature Maps and Properties
%A Zafeiriou, S.
%A Kotsia, I.
%B Proceedings of IEEE Int’l Conf. on Computer Vision (ICCV 2013), Accepted
%D 2013
%F zaf_kot_one_shot

Texture and Shape Information Fusion for Facial Action Unit Recognition

I. Kotsia, S. Zafeiriou, N. Nikolaidis, I. Pitas. The First International Conference on Advances in Computer-Human Interaction (ACHI 08) . 2008.

Bibtex reference [hide]
@inproceedings{kotsia_achi2008,
    author = {I. Kotsia and S. Zafeiriou and N. Nikolaidis and I. Pitas},
    booktitle = {The First International Conference on Advances in Computer-Human Interaction (ACHI 08) },
    title = {Texture and Shape Information Fusion for Facial Action Unit Recognition},
    year = {2008},
}
Endnote reference [hide]
%0 Conference Proceedings
%T Texture and Shape Information Fusion for Facial Action Unit Recognition
%A Kotsia, I.
%A Zafeiriou, S.
%A Nikolaidis, N.
%A Pitas, I.
%B The First International Conference on Advances in Computer-Human Interaction (ACHI 08)
%D 2008
%F kotsia_achi2008

Discriminant Non-negative Matrix Factorization and Projected Gradients for Frontal Face Verification

I. Kotsia, S. Zafeiriou, I. Pitas. The First COST 2101 Workshop on Biometrics and Identity Management (BIOID 2008). 2008.

Bibtex reference [hide]
@inproceedings{kotsia_bioid2008,
    author = {I. Kotsia and S. Zafeiriou and I. Pitas},
    booktitle = {The First COST 2101 Workshop on Biometrics and Identity Management (BIOID 2008)},
    title = {Discriminant Non-negative Matrix Factorization and Projected Gradients for Frontal Face Verification},
    year = {2008},
}
Endnote reference [hide]
%0 Conference Proceedings
%T Discriminant Non-negative Matrix Factorization and Projected Gradients for Frontal Face Verification
%A Kotsia, I.
%A Zafeiriou, S.
%A Pitas, I.
%B The First COST 2101 Workshop on Biometrics and Identity Management (BIOID 2008)
%D 2008
%F kotsia_bioid2008

Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition

I. Kotsia, S. Zafeiriou, N. Nikolaidis, I. Pitas. IEEE Workshop on Machine Learning for Signal Processing (MLSP 2007). 2007.

Bibtex reference [hide]
@inproceedings{kotsia_mlsp2007,
    author = {I. Kotsia and S. Zafeiriou and N. Nikolaidis and I. Pitas},
    booktitle = {IEEE Workshop on Machine Learning for Signal Processing (MLSP 2007)},
    title = {Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition},
    year = {2007},
}
Endnote reference [hide]
%0 Conference Proceedings
%T Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition
%A Kotsia, I.
%A Zafeiriou, S.
%A Nikolaidis, N.
%A Pitas, I.
%B IEEE Workshop on Machine Learning for Signal Processing (MLSP 2007)
%D 2007
%F kotsia_mlsp2007

Other publications

Higher Order Support Tensor Regression for Head Pose Estimation

W. Guo, I. Kotsia, I. Patras. 12th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2011). 2011.

Bibtex reference [hide]
@conference{kotsia_wiamis2011,
    author = {W. Guo and I. Kotsia and I. Patras},
    booktitle = {12th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2011)},
    title = {Higher Order Support Tensor Regression for Head Pose Estimation},
    year = {2011},
}
Endnote reference [hide]
%0 Journal Article
%T Higher Order Support Tensor Regression for Head Pose Estimation
%A Guo, W.
%A Kotsia, I.
%A Patras, I.
%D 2011
%F kotsia_wiamis2011

Action spotting exploiting the frequency domain

I. Kotsia, V. Argyriou. 2nd IEEE Int. Workshop on Computer Games (CVPR). 2011.

Bibtex reference [hide]
@conference{kotsia_cvcg2011,
    author = {I. Kotsia and V. Argyriou},
    booktitle = {2nd IEEE Int. Workshop on Computer Games (CVPR)},
    title = {Action spotting exploiting the frequency domain },
    year = {2011},
}
Endnote reference [hide]
%0 Journal Article
%T Action spotting exploiting the frequency domain
%A Kotsia, I.
%A Argyriou, V.
%D 2011
%F kotsia_cvcg2011

Support Tucker Machines

I. Kotsia, I. Patras. IEEE Conference on Computer Vision and Pattern Recognition. 2011.

Bibtex reference [hide]
@conference{kotsia_cvpr2011,
    author = {I. Kotsia and I. Patras},
    booktitle = {IEEE Conference on Computer Vision and Pattern Recognition},
    title = {Support Tucker Machines},
    year = {2011},
}
Endnote reference [hide]
%0 Journal Article
%T Support Tucker Machines
%A Kotsia, I.
%A Patras, I.
%D 2011
%F kotsia_cvpr2011

Max-Margin Semi-NMF

V. Kumar, I. Kotsia, I. Patras. British Machine Vision Conference. 2011.

Bibtex reference [hide]
@conference{kotsia_bmvc2011,
    author = {V. Kumar and I. Kotsia and I. Patras},
    booktitle = {British Machine Vision Conference},
    title = {Max-Margin Semi-NMF},
    year = {2011},
}
Endnote reference [hide]
%0 Journal Article
%T Max-Margin Semi-NMF
%A Kumar, V.
%A Kotsia, I.
%A Patras, I.
%D 2011
%F kotsia_bmvc2011

Multiplicative Update rules for Multilinear Support Tensor Machines

I. Kotsia, I. Patras. International Conference on Pattern Recognition. 2010.

Bibtex reference [hide]
@conference{kotsia_icpr2010,
    author = {I. Kotsia and I. Patras},
    booktitle = {International Conference on Pattern Recognition},
    title = {Multiplicative Update rules for Multilinear Support Tensor Machines },
    year = {2010},
}
Endnote reference [hide]
%0 Journal Article
%T Multiplicative Update rules for Multilinear Support Tensor Machines
%A Kotsia, I.
%A Patras, I.
%D 2010
%F kotsia_icpr2010

Relative Margin Support Tensor Machines for gait and action recognition

I. Kotsia, I. Patras. ACM International conference on Image and Video Retrieval. 2010.

Bibtex reference [hide]
@conference{kotsia_civr2010,
    author = {I. Kotsia and I. Patras},
    booktitle = {ACM International conference on Image and Video Retrieval},
    title = { Relative Margin Support Tensor Machines for gait and action recognition },
    year = {2010},
}
Endnote reference [hide]
%0 Journal Article
%T Relative Margin Support Tensor Machines for gait and action recognition
%A Kotsia, I.
%A Patras, I.
%D 2010
%F kotsia_civr2010

Frontal facial view recognition in video sequences using DNMF and SVMs

I. Kotsia, N. Nikolaidis, I. Pitas. IEEE International Conference on Multimedia and Expo. 2009.

Bibtex reference [hide]
@conference{kotsia_icme2009,
    booktitle = {IEEE International Conference on Multimedia and Expo},
    title = {Frontal facial view recognition in video sequences using DNMF and SVMs},
    year = {2009},
}
Endnote reference [hide]
%0 Journal Article
%T Frontal facial view recognition in video sequences using DNMF and SVMs
%D 2009
%F kotsia_icme2009

Multi-modal emotion-related data collection within a virtual earthquake emulator

D. Ververidis, I. Kotsia, C. Kotropoulos , I. Pitas. 6th Language Resources and Evaluation Conference . 2008.

Bibtex reference [hide]
@conference{kotsia_lrec2008,
    booktitle = {6th Language Resources and Evaluation Conference },
    title = {Multi-modal emotion-related data collection within a virtual earthquake emulator },
    year = {2008},
}
Endnote reference [hide]
%0 Journal Article
%T Multi-modal emotion-related data collection within a virtual earthquake emulator
%D 2008
%F kotsia_lrec2008

Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant

I. Kotsia, N. Nikolaidis, I. Pitas. International Conference on Acoustics, Speech and Signal Processing (ICASSP 2007). 2007.

Bibtex reference [hide]
@conference{kotsia_icassp2007,
    booktitle = {International Conference on Acoustics, Speech and Signal Processing (ICASSP 2007)},
    title = {Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant },
    year = {2007},
}
Endnote reference [hide]
%0 Journal Article
%T Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant
%D 2007
%F kotsia_icassp2007

An Audio-Visual Emotion Database to Evaluate Multimodal Emotion Recognition Algorithms

O. Martin, I. Kotsia, B. Macq, I. Pitas. IEEE International Workshop on Multimedia Databases and Data Management IEEE-MDDM. 2006.

Bibtex reference [hide]
@conference{kotsia_mddm2006,
    booktitle = { IEEE International Workshop on Multimedia Databases and Data Management IEEE-MDDM},
    title = {An Audio-Visual Emotion Database to Evaluate Multimodal Emotion Recognition Algorithms},
    year = {2006},
}
Endnote reference [hide]
%0 Journal Article
%T An Audio-Visual Emotion Database to Evaluate Multimodal Emotion Recognition Algorithms
%D 2006
%F kotsia_mddm2006

The eNTERFACE'05 Audio-Visual Emotion Database

O. Martin, I. Kotsia, B. Macq, I. Pitas. 22nd International Conference on Data Engineering Workshops (ICDEW'06) . 2006.

Bibtex reference [hide]
@conference{kotsia_ICDEW2006,
    booktitle = {22nd International Conference on Data Engineering Workshops (ICDEW'06) },
    title = {The eNTERFACE'05 Audio-Visual Emotion Database},
    year = {2006},
}
Endnote reference [hide]
%0 Journal Article
%T The eNTERFACE?05 Audio-Visual Emotion Database
%D 2006
%F kotsia_ICDEW2006

Facial expression recognition using shape and texture information

I. Kotsia, I. Pitas. IFIP TC12 and WG12.5 Conference on Artificial Intelligence. 2006.

Bibtex reference [hide]
@conference{kotsia_ifip2006,
    author = {I. Kotsia and I. Pitas},
    booktitle = {IFIP TC12 and WG12.5 Conference on Artificial Intelligence},
    title = {Facial expression recognition using shape and texture information},
    year = {2006},
}
Endnote reference [hide]
%0 Journal Article
%T Facial expression recognition using shape and texture information
%A Kotsia, I.
%A Pitas, I.
%D 2006
%F kotsia_ifip2006

Fusion Of Geometrical And Texture Information For Facial Expression Recognition

I. Kotsia, N. Nikolaidis, I. Pitas. International Conference on Image Processing (ICIP 2006). 2006.

Bibtex reference [hide]
@conference{kotsia_icip2006,
    booktitle = {International Conference on Image Processing (ICIP 2006)},
    title = {Fusion Of Geometrical And Texture Information For Facial Expression Recognition },
    year = {2006},
}
Endnote reference [hide]
%0 Journal Article
%T Fusion Of Geometrical And Texture Information For Facial Expression Recognition
%D 2006
%F kotsia_icip2006

Facial expression analysis under partial occlusion

I. Buciu, I. Kotsia, I. Pitas. IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2005. 2005.

Bibtex reference [hide]
@conference{kotsia_icassp2005,
    booktitle = {IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2005},
    title = {Facial expression analysis under partial occlusion},
    year = {2005},
}
Endnote reference [hide]
%0 Journal Article
%T Facial expression analysis under partial occlusion
%D 2005
%F kotsia_icassp2005

Real time facial expression recognition from video sequences using Support Vector Machines

I. Kotsia, I. Pitas. Visual Communications and Image Processing (VCIP 2005) . 2005.

Bibtex reference [hide]
@conference{kotsia_vcip2005,
    booktitle = {Visual Communications and Image Processing (VCIP 2005) },
    title = {Real time facial expression recognition from video sequences using Support Vector Machines},
    year = {2005},
}
Endnote reference [hide]
%0 Journal Article
%T Real time facial expression recognition from video sequences using Support Vector Machines
%D 2005
%F kotsia_vcip2005

Multimodal caricatural mirror

O. Martin, J. Adell, A. Huerta, I. Kotsia, A. Savran. eINTERFACE-2005. 2005.

Bibtex reference [hide]
@conference{kotsia_enterface2005,
    author = {O. Martin and J. Adell and A. Huerta and I. Kotsia and A. Savran},
    booktitle = {eINTERFACE-2005},
    title = {Multimodal caricatural mirror},
    year = {2005},
}
Endnote reference [hide]
%0 Journal Article
%T Multimodal caricatural mirror
%A Martin, O.
%A Adell, J.
%A Huerta, A.
%A Kotsia, I.
%A Savran, A.
%D 2005
%F kotsia_enterface2005

Real time facial expression recognition from image sequences using Support Vector Machines

I. Kotsia, I. Pitas. IEEE International Conference on Image Processing (ICIP 2005). 2005.

Bibtex reference [hide]
@conference{kotsia_icip2005,
    booktitle = {IEEE International Conference on Image Processing (ICIP 2005)},
    title = {Real time facial expression recognition from image sequences using Support Vector Machines},
    year = {2005},
}
Endnote reference [hide]
%0 Journal Article
%T Real time facial expression recognition from image sequences using Support Vector Machines
%D 2005
%F kotsia_icip2005

Recognition of facial expressions in presence of partial occlusion

I. Buciu, I. Kotsia, I. Pitas. 9th Panhellenic Conference on Informatics (PCI `03). 2003.

Bibtex reference [hide]
@conference{kotsia_pci2003,
    author = {I. Buciu and I. Kotsia and I. Pitas},
    booktitle = {9th Panhellenic Conference on Informatics (PCI `03)},
    title = {Recognition of facial expressions in presence of partial occlusion},
    year = {2003},
}
Endnote reference [hide]
%0 Journal Article
%T Recognition of facial expressions in presence of partial occlusion
%A Buciu, I.
%A Kotsia, I.
%A Pitas, I.
%D 2003
%F kotsia_pci2003