Dimitrios Tzionas

Dimitrios Tzionas is an Assistant Professor for 3D Computer Vision at the University of Amsterdam (UvA), leading research at the intersection of Computer Vision, Computer Graphics, and Machine Learning. His work focuses on reconstructing and modeling 3D human-body interactions with objects and scenes, supporting applications in Robotics, Mixed Reality, and the Metaverse.

• Academic Affiliation: University of Amsterdam (since 2022), Max Planck Institute for Intelligent Systems (2016-2022)
• Education: PhD in Computer Science (University of Bonn, 2017), MSc in Electrical & Computer Engineering (Aristotle University, Thessaloniki)

His research emphasizes whole-body 3D interaction, including pose estimation, grasp synthesis, and contact-aware modeling. He develops methods like InteractVLM for semantic contact estimation and PICO for dense 3D contact datasets, leveraging vision-language models and optimization frameworks.

Recent publications at CVPR, ICCV, and SIGGRAPH Asia highlight advancements in 3D reconstruction, avatar synthesis (PuzzleAvatar), and interactive dynamics (InterDyn). His work is supported by an ERC Starting Grant (2024-2030) and industry partnerships (Google, NVIDIA).

• Scientific Awards
  • ERC Starting Grant (2024)
  • ELLIS Scholar (2025)
  • Outstanding Reviewer at CVPR, ICCV, ECCV

He advises multiple PhD students, including Alvaro Budria and Lixin Xue, and collaborates with institutions like ETH Zurich and MPI-IS. His team's tools (e.g., ICON, GRAB) are widely adopted in academic and industrial research.