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Dimitris Tzionas
Perceiving Systems Guest Scientist
I am an Assistant Professor at the University of Amsterdam (UvA) since June 2022.
I have migrated to https://dtzionas.com but, for now, I still update this webpage (i.e. both webpages).
--- Motivated students can contact me by following these instructions (my email: d.tzionas@uva.nl).
Earlier I was a Research Scientist at the Perceiving Systems (PS) department of Michael Black, at MPI for Intelligent Systems in Tübingen.
Even earlier I was a PostDoc at PS. I received a PhD from the University of Bonn for my work with Juergen Gall on Hand-Object Interaction.
My alma mater is the Aristotle University of Thessaloniki in Greece, where I studied Electrical and Computer Engineering, and I closely cooparated with Leontios Hadjileontiadis.
I conduct research on the intersection of Computer Vision (CV), Computer Graphics (CG) and Machine Learning (ML). My motivation is to understand and model how people look, move and interact with the physical world and with each other to perform tasks.
This involves (1) accurately "capturing" real people and their whole-body interactions with scenes and objects, (2) modeling their shape, pose and interaction relationships, (3) applying these models to reconstruct real-life actions in 3D/4D, and (4) using these models to generate realistic interacting avatars in 3D/4D.
Potential applications include Ambient Intelligence, Virtual Assistants, Human-Computer/Robot Interaction, Augmented/Virtual Reality (AR/VR) and the "Metaverse".
The long-term goal is to develop human-centered AI that perceives humans, understands their behavior and helps them to achieve their goals.
Jan 2024: Accepted paper at IJCV (special issue) - InterCap. Congrats Yinghao et al.!
Dec 2023: George Paschalidis starts his PhD -- welcome on board!
Dec 2023: Accepted CVPR'24 workshop: The 2nd Rhobin challenge (co-organizer with a great group of colleagues).
Oct 2023: Accepted papers at 3DV 2024: POCO (congrats Sai et al.!) and GRIP (congrats Omid et al.!)
Sep 2023: I serve as an Area Chair for 3DV 2024.
Aug 2023: Two BSc theses and a MSc thesis submitted (UvA). Congrats Benjamin, Roan & Romana!
July 2023: Open PhD position at the UvA (Deadine is over).
July 2023: Accepted paper at ICCV 2023: DECO (website coming soon) -- congrats Shashank et al.!
Jun 2023: Guest lecture (1h) on 3D perception of humans at UvA's "Computer Vision II" course.
May 2023: Outstanding Reviewer award for CVPR 2023 (top 3.5%).
April 2023: Congrats to Shashank & Omid for their distinctions in the Meta 2023 fellowship program!
Mar 2023: Dimitrije Antic starts his PhD -- welcome on board!
Feb 2023: Accepted papers at CVPR 2023: HOT (congrats Yixin et al.!), IPMAN (congrats Shashank et al.!), ECON (congrats Yuliang et al.!), ARCTIC (congrats Alex et al.!), and SGNify (congrats Paola et al.!).
Feb 2023: The New York Times (NYT) uses our ICON software in an interactive article for reconstructing key goals at the 2023 Super Bowl (American football league).
Dec 2022: Congratulations to Dr. Choutas for a successful PhD defence!
Nov 2022: The New York Times (NYT) uses our ICON software for reconstructing key goals of the 2022 FIFA World Cup: Technical article (NYT R&D team), Interactive articles for games 1, 2, 3, 4, 5.
Oct 2022: Talk (pptx) at the "Observing and Understanding Hands in Action" workshop at ECCV 2022. Thanks Angela & Linlin for the invite!
Sep 2022: InterCap received the "honorable mention" award at GCPR 2022. Congrats Yinghao et al.!
Aug-Sep 2022: I serve as an Area Chair for BMVC 2022.
July 2022: Open PhD position at UvA (application deadline has passed).
July 2022: Accepted paper at ECCV 2022: SUPR. Congrats Ahmed et al.!
July 2022: Accepted paper at GCPR 2022: InterCap. Congrats Yinghao et al.!
June 2022: SHAPY was a best paper finalist at CVPR 2022 (33 papers shortlisted out of 2064 ones).
June 2022: Joined the University of Amsterdam (Computer Vision group) as an Assistant Professor.
April 2022: Raised 140k EUR from BMBF for the 2022 project "Machine Learning for Interacting Human Avatars" (PS MEWE 103Z (BMBF/Tü AI)).
April 2022: Joined the ELLIS society.
Mar 2022: Accepted papers at CVPR 2022: GOAL (congrats Omid et al.), ICON (congrats Yuliang et al.), SHAPY (congrats Lea and Vassilis et al.) and MOVER (congrats Hongwei et al.).
Oct 2021: Accepted paper at 3DV 2021: PIXIE. Congrats Yao & Vassilis et al.!
Oct 2021: Talk at the University of Bristol, Department of Computer Science.
Sep 2021: Talk at the University of Amsterdam, Informatics Institute.
Aug-Sep 2021: I serve as an Area Chair for 3DV 2021.
June 2021: Talk at Microsot Mixed Reality & AI Lab.
June 2021: We organize the full-day tutorial "SMPL made Simple" at CVPR 2021.
May 2021: Outstanding Reviewer award for CVPR 2021 (top 20.3%).
Mar 2021: Talk at Imperial College London, Intelligent Systems and Networks Group.
Mar 2021: Accepted paper at CVPR 2021: POSA. Congrats Mohamed et al.!
Feb 2021: Talk at Dima Damen's computer vision group (\in VILab, Uni. of Bristol).
Oct 2020: Outstanding Reviewer award for ECCV 2020 (top 7.6%).
Jul 2020: Accepted papers at ECCV 2020: GRAB & ExPose. Congrats Omid et al. and Vassilis et al.!
Jun 2020: Outstanding Reviewer award for CVPR 2020 (top 3.9%).
Jan 2020: Accepted paper at IJCV: "Learning Multi-Human Optical Flow". Congrats Anurag and David et al.!
Sep 2019: Successfully raised 195k EUR from BMBF for the 3-year project "Robust 3D Hand-Object Interaction" (PS MEWE 103Z (BMBF/Tü AI)), for 1 PhD-candidate co-advised with M. J. Black.
Sep 2019: Outstanding Reviewer award for ICCV 2019 (top 3.6%).
Jul 2019: Accepted paper at ICCV 2019: PROX. Congrats Mohamed et al.!
Jul 2019: Accepted paper at GCPR 2019: "Learning to Train with Synthetic Humans". Congrats David et al.!
Mar 2019: Accepted papers at CVPR 2019: ObMan & SMPLify-X. Congrats Yana, George, Vassilis et al.!
Oct 2018: Continuing as Research-Scientist at PS/MPI-IS.
Sep 2018: Accepted paper at SIGA 2017: MANO and SMPL+H. Congrats Javier et al.!
Jan 2017: PhD defense at Uni-Bonn. Thanks Juergen!
Oct 2016: Starting as Post-Doc at PS/MPI-IS.