Athanasios Papaioannou

Google, London, UK

Athanasios (Thanos) Papaioannou is a senior computer vision researcher with 10+ years of experience building large-scale 3D and 4D visual systems, neural rendering pipelines, and generative models for human-centric applications, with first- and senior-author publications at top venues (ECCV, ICCV, IJCV, Scientific Reports). He holds a PhD in Computing from Imperial College London.

news

September 2026	Joined Google AR & VR in London, UK, as Research Software Engineer.

selected publications

IJCV

ICo3D: An Interactive Conversational 3D Virtual Human

Robert Shaw, Youngkyoon Jang, Athanasios Papaioannou, and 4 more authors

International Journal of Computer Vision, 2026

Shaw, Jang, Papaioannou, and Moreau contributed equally (joint first authorship)
ICCV

imHead: A Large-Scale Implicit Morphable Model for Localized Head Modeling

Rolandos Alexandros Potamias, Stathis Galanakis, Jiankang Deng, and 2 more authors

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

MimicME: A Large Scale Diverse 4D Database for Facial Expression Analysis

Athanasios Papaioannou, Baris Gecer, Shiyang Cheng, and 1 more author

In European Conference on Computer Vision (ECCV), 2022
SciRep

Convolutional Mesh Autoencoders for the 3-Dimensional Identification of FGFR-related Craniosynostosis

Erin O’Sullivan, Lara S Lande, Athanasios Papaioannou, and 1 more author

Scientific Reports, 2022
ECCV

Synthesizing Coupled 3D Face Modalities by Trunk-Branch Generative Adversarial Networks

Baris Gecer, Alexander Lattas, Stylianos Ploumpis, and 4 more authors

In European Conference on Computer Vision (ECCV), 2020
IJCV

3DFaceGAN: Adversarial nets for 3D face representation, generation, and translation

Stylianos Moschoglou, Stylianos Ploumpis, Mihalis A Nicolaou, and 2 more authors

International Journal of Computer Vision, 2020