Dr. Ioannis Marras

Position:

Past Member

New Position:

Post-doc researcher at QMUL

Email:

Biography

I received the BS degree from the Department of informatics of Aristotle University of Thessaloniki in 2005. From March 2005 until January 2010 I was working as a Research Assistant, Teaching Assistant and Development engineer in the Artificial
Intelligence Information Analysis (AIIA) laboratory at the Aristotle University of Thessaloniki, Greece, as well as in Informatics and Telematics Institute (CERTH), Greece. Since February 2011, I am a Researcher in the Department of Computing at Imperial College working with Prof. Maja Pantic on dynamic 3D facial expression modelling/recognition and 2D/3D object tracking.

Research Themes:

Face analysis:
Face registration, 3D facial expression modelling and recognition

Projects:

4D-FAB, FROG

Publications

Journal articles

Linear Complexity Self-Attention with 3rd Order Polynomials

F. Babiloni, I. Marras, J. Deng, F. Kokkinos, M. Maggioni, G. Chrysos, P. Torr, S. Zafeiriou. TPAMI. 2023.

[pdf] [bibtex] [endnote]

@article{babiloni2023linear,
    author = {F. Babiloni and I. Marras and J. Deng and F. Kokkinos and M. Maggioni and G. Chrysos and P. Torr and S. Zafeiriou},
    journal = {TPAMI},
    title = {Linear Complexity Self-Attention with 3rd Order Polynomials},
    year = {2023},
}

Statistical non-rigid ICP algorithm and its application to 3D face alignment

S. Cheng, I. Marras, S. Zafeiriou, M. Pantic. Image and Vision Computing, Special Issue on best of FG'2015. 2017.

[pdf] [bibtex] [endnote]

@article{NICP2017,
    journal = {Image and Vision Computing, Special Issue on best of FG'2015},
    title = {Statistical non-rigid ICP algorithm and its application to 3D face alignment},
    year = {2017},
}

Online learning and fusion of orientation appearance models for robust rigid object tracking

I. Marras, G. Tzimiropoulos, S. Zafeiriou, M. Pantic. Image and Vision Computing. 32(10): pp. 707 - 727, 2014.

[pdf] [bibtex] [endnote]

@article{marras_journal,
    author = {I. Marras and G. Tzimiropoulos and S. Zafeiriou and M. Pantic},
    pages = {707--727},
    journal = {Image and Vision Computing},
    number = {10},
    publisher = {Elsevier},
    title = {Online learning and fusion of orientation appearance models for robust rigid object tracking},
    volume = {32},
    year = {2014},
}

%0 Journal Article
%T Online learning and fusion of orientation appearance models for robust rigid object tracking
%A Marras, I.
%A Tzimiropoulos, G.
%A Zafeiriou, S.
%A Pantic, M.
%J Image and Vision Computing
%D 2014
%V 32
%N 10
%I Elsevier
%F marras_journal
%P 707-727

FISH image analysis using a modified radial basis function network

C. Sagonas, I. Marras, I. Kasampalidis, I. Pitas, K. Lyroudia, G. Karayannopoulou. Biomedical Signal Processing and Control. 8: pp. 30 - 40, January 2013.

[bibtex] [endnote]

@article{fish_2012,
    author = {C. Sagonas and I. Marras and I. Kasampalidis and I. Pitas and K. Lyroudia and G. Karayannopoulou},
    pages = {30--40},
    journal = {Biomedical Signal Processing and Control},
    month = {January },
    publisher = {Elsevier },
    title = {FISH image analysis using a modified radial basis function network},
    volume = {8},
    year = {2013},
}

%0 Journal Article
%T FISH image analysis using a modified radial basis function network
%A Sagonas, C.
%A Marras, I.
%A Kasampalidis, I.
%A Pitas, I.
%A Lyroudia, K.
%A Karayannopoulou, G.
%J Biomedical Signal Processing and Control
%D 2013
%8 January
%V 8
%I Elsevier
%F fish_2012
%P 30-40

Conference articles

Poly-NL: Linear Complexity Non-local Layers with Polynomials

F. Babiloni, I. Marras, F. Kokkinos, J. Deng, G. Chrysos, S. Zafeiriou. ICCV. 2021.

[pdf] [bibtex] [endnote]

@inproceedings{polynliccv2021,
    author = {F. Babiloni and I. Marras and F. Kokkinos and J. Deng and G. Chrysos and S. Zafeiriou},
    booktitle = {ICCV},
    title = {Poly-NL: Linear Complexity Non-local Layers with Polynomials},
    year = {2021},
}

Active Nonrigid ICP Algorithm

S. Cheng, I. Marras, S. Zafeiriou, M. Pantic. IEEE International Conference on Automatic Face and Gesture Recognition (FG'15). Ljubljana, Slovenia, Oral. May 2015.

[pdf] [bibtex] [endnote]

@inproceedings{shiyang_active_nicp,
    author = {S. Cheng and I. Marras and S. Zafeiriou and M. Pantic},
    address = {Ljubljana, Slovenia},
    booktitle = {IEEE International Conference on Automatic Face and Gesture Recognition (FG'15)},
    month = {May},
    note = {Oral},
    title = {Active Nonrigid ICP Algorithm},
    year = {2015},
}

Online Learning and Fusion of Orientation Appearance Models for Robust Rigid Object Tracking

I. Marras, J. Alabort-i-medina, G. Tzimiropoulos, S. Zafeiriou, M. Pantic. Proceedings of the IEEE 10th International Conference on Automatic Face & Gesture Recognition (FG). April 2013.

[pdf] [bibtex] [endnote]

@inproceedings{Marras_FG_2013,
    author = {I. Marras and J. Alabort-i-medina and G. Tzimiropoulos and S. Zafeiriou and M. Pantic},
    booktitle = {Proceedings of the IEEE 10th International Conference on Automatic Face & Gesture Recognition (FG)},
    month = {April},
    title = {Online Learning and Fusion of Orientation Appearance Models for Robust Rigid Object Tracking},
    year = {2013},
}

%0 Conference Proceedings
%T Online Learning and Fusion of Orientation Appearance Models for Robust Rigid Object Tracking
%A Marras, I.
%A Alabort-i-medina, J.
%A Tzimiropoulos, G.
%A Zafeiriou, S.
%A Pantic, M.
%B Proceedings of the IEEE 10th International Conference on Automatic Face & Gesture Recognition (FG)
%D 2013
%8 April
%F Marras_FG_2013

Robust learning from normals for 3d face recognition

I. Marras, S. Zafeiriou, G. Tzimiropoulos. Computer Vision–European Conference on Computer Vision (ECCV-W'12), Workshops and Demonstrations . pp. 230 - 239, 2012.

[pdf] [bibtex] [endnote]

@inproceedings{Marras_ECCV_Workshop_2012,
    author = {I. Marras and S. Zafeiriou and G. Tzimiropoulos},
    pages = {230--239},
    booktitle = {Computer Vision–European Conference on Computer Vision (ECCV-W'12), Workshops and Demonstrations },
    title = {Robust learning from normals for 3d face recognition},
    year = {2012},
}

%0 Conference Proceedings
%T Robust learning from normals for 3d face recognition
%A Marras, I.
%A Zafeiriou, S.
%A Tzimiropoulos, G.
%B Computer Vision–European Conference on Computer Vision (ECCV-W?12), Workshops and Demonstrations
%D 2012
%F Marras_ECCV_Workshop_2012
%P 230-239

Other publications

A Joint Discriminative Generative Model for Deformable Model Construction and Classification

I. Marras, S. Nikitidis, S. Zafeiriou, M. Pantic. IEEE Face and Gesture Recognition 2017. May 2017.

[pdf] [bibtex] [endnote]

@conference{Marras2017,
    author = {I. Marras and S. Nikitidis and S. Zafeiriou and M. Pantic},
    booktitle = {IEEE Face and Gesture Recognition 2017},
    month = {May},
    title = {A Joint Discriminative Generative Model for Deformable Model Construction and Classification},
    year = {2017},
}