Rolandos Alexandros Potamias
I’m a Research Associate at Imperial College London in 3D Computer Vision and Deep Generative Models in non-Euclidean Spaces. My current interests lie in the intersection of generative models and 3D avatars, with particular emphasis on 3D Hands, Faces and Bodies. Previously I received my PhD in 3D Computer Vision from Imperial College London advised by Stefanos Zafeiriou. Prior to my PhD, I received my MEng degree at the National Technical University of Athens, where I was supervised by Prof. Andreas Stafylopatis.
News
- Jul 2025 Five papers accepted at ICCV 2025. Congratulations to all co-authors!
- Feb 2025 Three papers accepted at CVPR 2025. Congratulations to all co-authors!
- Jul 2024 Three papers accepted at ECCV 2024. Congratulations to all co-authors!
- Feb 2024 Three papers accepted at CVPR 2024. Congratulations to all co-authors!
- Mar 2023 Our workshop on NeRFs got accepted at ICCV 2023.
- Mar 2022 Handy got accepted at CVPR 2023.
...show all...
WiLoR: End-to-end 3D hand localization and reconstruction in-the-wild
Rolandos Alexandros Potamias, Jinglei Zhang, Jiankang Deng, Stefanos Zafeiriou
CVPR 2025
@misc{potamias2024wilor,
title={WiLoR: End-to-end 3D Hand Localization and Reconstruction in-the-wild},
author={Rolandos Alexandros Potamias and Jinglei Zhang and Jiankang Deng and Stefanos Zafeiriou},
year={2024},
eprint={2409.12259},
archivePrefix={arXiv},
primaryClass={cs.CV}
}
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HaWoR: World-Space Hand Motion Reconstruction from Egocentric Videos
Jinglei Zhang, Jiankang Deng, Chao Ma, Rolandos Alexandros Potamias
CVPR 2025 (Highlight)
@article{zhang2025hawor,
title={HaWoR: World-Space Hand Motion Reconstruction from Egocentric Videos},
author={Zhang, Jinglei and Deng, Jiankang and Ma, Chao and Potamias, Rolandos Alexandros},
journal={arXiv preprint arXiv:2501.02973},
year={2025}
}
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Arc2Avatar: Generating Expressive 3D Avatars from a Single Image via ID Guidance
Dimitrios Gerogiannis, Foivos Paraperas Papantoniou, Rolandos Alexandros Potamias, Alexandros Lattas, Stefanos Zafeiriou
CVPR 2025
@article{gerogiannis2025arc2avatar,
title={Arc2Avatar: Generating Expressive 3D Avatars from a Single Image via ID Guidance},
author={Gerogiannis, Dimitrios and Papantoniou, Foivos Paraperas and Potamias, Rolandos Alexandros and Lattas, Alexandros and Zafeiriou, Stefanos},
journal={arXiv preprint arXiv:2501.05379},
year={2025}
}
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ZeroGS: Training 3D Gaussian Splatting from Unposed Images
Yu Chen, Rolandos Alexandros Potamias, Evangelos Ververas, Jifei Song, Jiankang Deng, Gim Hee Lee
arXiv 2024
@inproceedings{yuchen2024zerogs,
title={ZeroGS: Training 3D Gaussian Splatting from Unposed Images},
author={Yu Chen, Rolandos Alexandros Potamias, Evangelos Ververas, Jifei Song, Jiankang Deng, Gim Hee Lee},
booktitle={arXiv},
year={2024},
}
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Signs as Tokens: An Autoregressive Multilingual Sign Language Generator
Ronglai Zuo, Rolandos Alexandros Potamias, Evangelos Ververas, Jiankang Deng, Stefanos Zafeiriou
ICCV 2025
@article{zuo2024signs,
title={Signs as Tokens: An Autoregressive Multilingual Sign Language Generator},
author={Zuo, Ronglai and Potamias, Rolandos Alexandros and Ververas, Evangelos and Deng, Jiankang and Zafeiriou, Stefanos},
journal={arXiv preprint arXiv:2411.17799},
year={2024}
}
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SAGS: Structure-Aware 3D Gaussian Splatting
Evangelos Ververas, Rolandos Alexandros Potamias, Jifei Song, Jiankang Deng, Stefanos Zafeiriou
European Conference on Computer Vision (ECCV) 2024
@misc{ververas2024sags,
title={SAGS: Structure-Aware 3D Gaussian Splatting},
author={Evangelos Ververas and Rolandos Alexandros Potamias and Jifei Song and Jiankang Deng and Stefanos Zafeiriou},
year={2024},
eprint={2404.19149},
archivePrefix={arXiv},
primaryClass={cs.CV}
}
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ShapeFusion: A 3D diffusion model for localized shape editing
Rolandos Alexandros Potamias, Michail Tarasiou, Stylianos Ploumpis, Stefanos Zafeiriou
European Conference on Computer Vision (ECCV) 2024
@article{potamias2024shapefusion,
title={ShapeFusion: A 3D diffusion model for localized shape editing},
author={Potamias, Rolandos Alexandros and Tarasiou, Michail and Ploumpis, Stylianos and Zafeiriou, Stefanos},
journal={arXiv preprint arXiv:2403.19773},
year={2024}
}
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AnimateMe: 4D Facial Expressions via Diffusion Models
Dimitrios Gerogiannis, Foivos Paraperas Papantoniou, Rolandos Alexandros Potamias,, Alexandros Lattas, Stylianos Moschoglou, Stylianos Ploumpis, Stefanos Zafeiriou
European Conference on Computer Vision (ECCV) 2024
@article{gerogiannis2024animateme,
title={AnimateMe: 4D Facial Expressions via Diffusion Models},
author={Gerogiannis, Dimitrios and Papantoniou, Foivos Paraperas and Potamias, Rolandos Alexandros and Lattas, Alexandros and Moschoglou, Stylianos and Ploumpis, Stylianos and Zafeiriou, Stefanos},
journal={arXiv preprint arXiv:2403.17213},
year={2024}
}
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Design2Cloth: 3D Cloth Generation from 2D Masks
Jiali Zheng,Rolandos Alexandros Potamias, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2024
@inproceedings{zheng_2024_design2cloth,
title={Design2Cloth: 3D Cloth Generation from 2D Masks},
author={Jiali Zheng and Rolandos Alexandros Potamias and Stefanos Zafeiriou},
booktitle={IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
year={2024}
}
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Neural Sign Actors: A diffusion model for 3D sign language production from text
Vasileios Baltatzis, Rolandos Alexandros Potamias, Evangelos Ververas, Guanxiong Sun, Jiankang Deng, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2024
@inproceedings{neuralsignactors2024,
title={Neural Sign Actors: A diffusion model for 3D sign language production from text},
author={Vasileios Baltatzis and Rolandos Alexandros Potamias and Evangelos Ververas and Guanxiong Sun and Jiankang Deng and Stefanos Zafeiriou},
booktitle={IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
year={2024}
}
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Locally Adaptive Neural 3D Morphable Models
Michail Tarasiou,Rolandos Alexandros Potamias, Eimear O' Sullivan, Stylianos Ploumpis, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2024
@inproceedings{neuralsignactors2024,
title={Locally Adaptive Neural 3D Morphable Models},
author={Michail Tarasiou and Rolandos Alexandros Potamias and Eimear O' Sullivan and Stylianos Ploumpis and Stefanos Zafeiriou,
booktitle={IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
year={2024}
}
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Multimodal brain age estimation using interpretable adaptive population-graph learning
Kyriaki-Margarita Bintsi, Vasileios Baltatzis, Rolandos Alexandros Potamias, Alexander Hammers, Daniel Rueckert
International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2023
@article{bintsi2023multimodal,
title={Multimodal brain age estimation using interpretable adaptive population-graph learning},
author={Bintsi, Kyriaki-Margarita and Baltatzis, Vasileios and Potamias, Rolandos Alexandros and Hammers, Alexander and Rueckert, Daniel},
journal={arXiv preprint arXiv:2307.04639},
year={2023}
}
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ILSH: The Imperial Light-Stage Head Dataset for Human Head View Synthesis
Jiali Zheng, Youngkyoon Jang, Athanasios Papaioannou, Christos Kampouris, Rolandos
Alexandros Potamias, Foivos Paraperas Papantoniou, Efstathios Galanakis, Ales Leonardis, and
Stefanos Zafeiriou
IEEE/CVF International Conference on Computer Vision (ICCV) 2023
@InProceedings{Zheng_2023_ICCV,
author = {Zheng, Jiali and Jang, Youngkyoon and Papaioannou, Athanasios and Kampouris, Christos and Potamias, Rolandos Alexandros and Papantoniou, Foivos Paraperas and Galanakis, Efstathios and Leonardis, Ale\v{s} and Zafeiriou, Stefanos},
title = {ILSH: The Imperial Light-Stage Head Dataset for Human Head View Synthesis},
booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV) Workshops},
month = {October},
year = {2023},
pages = {1112-1120}
}
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Handy: Towards a high fidelity 3D hand shape and appearance model
Rolandos Alexandros Potamias, Stylianos Ploumpis, Stylianos Moschoglou, Vasileios Triantafyllou, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2023
@inproceedings{potamias2023handy,
title={Handy: Towards a high fidelity 3d hand shape and appearance model},
author={Potamias, Rolandos Alexandros and Ploumpis, Stylianos and Moschoglou, Stylianos and Triantafyllou, Vasileios and Zafeiriou, Stefanos},
booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
pages={4670--4680},
year={2023}
}
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Neural mesh simplification
Rolandos Alexandros Potamias, Stylianos Ploumpis, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2022
@inproceedings{potamias2022neural,
title={Neural mesh simplification},
author={Potamias, Rolandos Alexandros and Ploumpis, Stylianos and Zafeiriou, Stefanos},
booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
pages={18583--18592},
year={2022}
}
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Graphwalks: efficient shape agnostic geodesic shortest path estimation
Rolandos Alexandros Potamias, Alexandros Neofytou, Kyriaki Margarita Bintsi, Stefanos Zafeiriou
IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops(CVPRw) 2022
@inproceedings{potamias2022graphwalks,
title={Graphwalks: efficient shape agnostic geodesic shortest path estimation},
author={Potamias, Rolandos Alexandros and Neofytou, Alexandros and Bintsi, Kyriaki Margarita and Zafeiriou, Stefanos},
booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition},
pages={2968--2977},
year={2022}
}
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Revisiting Point Cloud Simplification: A Learnable Feature Preserving Approach
Rolandos Alexandros Potamias, Giorgos Bouritsas, Stefanos Zafeiriou
European Conference on Computer Vision (ECCV) 2022
@inproceedings{potamias2022revisiting,
title={Revisiting point cloud simplification: A learnable feature preserving approach},
author={Potamias, Rolandos Alexandros and Bouritsas, Giorgos and Zafeiriou, Stefanos},
booktitle={European Conference on Computer Vision},
pages={586--603},
year={2022},
organization={Springer}
}
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Learning to Generate Customized Dynamic 3D Facial Expressions
Rolandos Alexandros Potamias, Jiali Zheng, Stylianos Ploumpis, Giorgos Bouritsas, Evangelos Ververas, Stefanos Zafeiriou
European Conference on Computer Vision (ECCV) 2020
@inproceedings{potamias2020learning,
title={Learning to generate customized dynamic 3D facial expressions},
author={Potamias, Rolandos Alexandros and Zheng, Jiali and Ploumpis, Stylianos and Bouritsas, Giorgos and Ververas, Evangelos and Zafeiriou, Stefanos},
booktitle={Computer Vision--ECCV 2020: 16th European Conference, Glasgow, UK, August 23--28, 2020, Proceedings, Part XXIX 16},
pages={278--294},
year={2020},
organization={Springer}
}
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A transformer-based approach to irony and sarcasm detection
Rolandos Alexandros Potamias, Georgios Siolas, Andreas-Georgios Stafylopatis
Neural Computing and Applications, 2019
@article{potamias2020transformer,
title={A transformer-based approach to irony and sarcasm detection},
author={Potamias, Rolandos Alexandros and Siolas, Georgios and Stafylopatis, Andreas-Georgios},
journal={Neural Computing and Applications},
volume={32},
number={23},
pages={17309--17320},
year={2020},
publisher={Springer}
}
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A robust deep ensemble classifier for figurative language detection
Rolandos-Alexandros Potamias, Georgios Siolas, Andreas Stafylopatis
Engineering Applications of Neural Networks (EANN) 2019
@inproceedings{potamias2019robust,
title={A robust deep ensemble classifier for figurative language detection},
author={Potamias, Rolandos-Alexandros and Siolas, Georgios and Stafylopatis, Andreas},
booktitle={Engineering Applications of Neural Networks: 20th International Conference, EANN 2019, Xersonisos, Crete, Greece, May 24-26, 2019, Proceedings 20},
pages={164--175},
year={2019},
organization={Springer}
}
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