Foivos Paraperas Papantoniou

Hi! I am a PhD student at the Department of Computing, Imperial College London, advised by Prof. Stefanos Zafeiriou. My research interests revolve around Computer Vision and Machine Learning, focusing on 3D and 2D human avatars using image and video diffusion models. I have worked as a Research Scientist Intern at Meta Reality Labs in Burlingame, CA, a Student Researcher at Google in London and a Research Intern at Huawei Technologies R&D, UK. Prior to starting my PhD, I did my undergraduate studies at the National Technical University of Athens, where I was supervised by Prof. Petros Maragos and Dr. Anastasios Roussos during my thesis.

selected publications

STARCaster: Spatio-Temporal AutoRegressive Video Diffusion for Identity- and View-Aware Talking Portraits

Foivos Paraperas Papantoniou, Stathis Galanakis, Rolandos Alexandros Potamias, Bernhard Kainz, and 1 more author

arXiv preprint arXiv:2512.13247, 2025

Bib arXiv Project Page Code

@article{paraperas2025starcaster,
  title = {STARCaster: Spatio-Temporal AutoRegressive Video Diffusion for Identity- and View-Aware Talking Portraits},
  author = {Paraperas Papantoniou, Foivos and Galanakis, Stathis and Potamias, Rolandos Alexandros and Kainz, Bernhard and Zafeiriou, Stefanos},
  journal = {arXiv preprint arXiv:2512.13247},
  year = {2025},
}

ID-Consistent, Precise Expression Generation with Blendshape-Guided Diffusion

Foivos Paraperas Papantoniou, and Stefanos Zafeiriou

In Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops, 2025

Bib arXiv Project Page Code

@inproceedings{paraperas2025arc2face_exp,
  title = {ID-Consistent, Precise Expression Generation with Blendshape-Guided Diffusion},
  author = {Paraperas Papantoniou, Foivos and Zafeiriou, Stefanos},
  booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops},
  year = {2025},
}

Arc2Avatar: Generating Expressive 3D Avatars from a Single Image via ID Guidance

Dimitrios Gerogiannis, Foivos Paraperas Papantoniou, Rolandos Alexandros Potamias, Alexandros Lattas, and 1 more author

In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025

Bib arXiv Project Page Code

@inproceedings{gerogiannis2025arc2avatar,
  title = {Arc2Avatar: Generating Expressive 3D Avatars from a Single Image via ID Guidance},
  author = {Gerogiannis, Dimitrios and Paraperas Papantoniou, Foivos and Potamias, Rolandos Alexandros and Lattas, Alexandros and Zafeiriou, Stefanos},
  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
  year = {2025},
}

Arc2Face: A Foundation Model for ID-Consistent Human Faces

Foivos Paraperas Papantoniou, Alexandros Lattas, Stylianos Moschoglou, Jiankang Deng, and 2 more authors

In Proceedings of the European Conference on Computer Vision (ECCV), 2024 (Oral Presentation)

Bib arXiv Project Page Code

@inproceedings{paraperas2024arc2face,
  title = {Arc2Face: A Foundation Model for ID-Consistent Human Faces},
  author = {Paraperas Papantoniou, Foivos and Lattas, Alexandros and Moschoglou, Stylianos and Deng, Jiankang and Kainz, Bernhard and Zafeiriou, Stefanos},
  booktitle = {Proceedings of the European Conference on Computer Vision (ECCV)},
  year = {2024},
}

Relightify: Relightable 3D Faces from a Single Image via Diffusion Models

Foivos Paraperas Papantoniou, Alexandros Lattas, Stylianos Moschoglou, and Stefanos Zafeiriou

In Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), 2023

Bib arXiv Project Page Video

@inproceedings{Paraperas_2023_ICCV,
  title = {Relightify: Relightable 3D Faces from a Single Image via Diffusion Models},
  author = {Paraperas Papantoniou, Foivos and Lattas, Alexandros and Moschoglou, Stylianos and Zafeiriou, Stefanos},
  booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV)},
  year = {2023},
}

Neural Emotion Director: Speech-preserving semantic control of facial expressions in "in-the-wild" videos

Foivos Paraperas Papantoniou, Panagiotis P. Filntisis, Petros Maragos, and Anastasios Roussos

In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022 (Oral Presentation, Best Paper Finalist)

Bib arXiv Project Page Video Code

@inproceedings{paraperas2022ned,
  title = {Neural Emotion Director: Speech-preserving semantic control of facial expressions in "in-the-wild" videos},
  author = {Paraperas Papantoniou, Foivos and Filntisis, Panagiotis P. and Maragos, Petros and Roussos, Anastasios},
  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
  year = {2022},
}