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George Kopanas

Google DeepMind
Senior Research Scientist

Bio

Senior Research Scientist - Google DeepMind, San Franscisco. In the past I worked towards advancing real-time, photorealistic 3D scene representations, particularly around Gaussian Splatting and Neural Radiance Fields. I graduated with a PhD from Inria Sophia Antipolis supervised by George Drettakis. My PhD research was focused on point-based representations. I have contributed to the research community through publications in conferences and journals and I was honored to be awarded in SIGGRAPH 2023 with the best paper award for "3D Gaussian Splatting for Real-Time Radiance Field Rendering".

Publications

Inverse Radiative Transport for Infrared Scenes with Gaussian Primitives Liu Zhenyuan, Bharath Seshadri, George Kopanas, Bernd Bickel SIGGRAPH Asia 2025 Radiance Meshes for Volumetric Reconstruction Alexander Mai, Trevor Hedstrom, George Kopanas, Janne Kontkanen, Falko Kuester, Jonathan T Barron arXiV
Generative View Stitching Chonghyuk Song, Michal Stary, Boyuan Chen, George Kopanas, Vincent Sitzmann arXiV
Content-Aware Texturing for Gaussian Splatting Panagiotis Papantonakis, George Kopanas, Frédo Durand, George Drettakis EGSR 2025
StochasticSplats: Stochastic Rasterization for Sorting-Free 3D Gaussian Splatting Shakiba Kheradmand*, Delio Vicini*, George Kopanas, Dmitry Lagun, Kwang Moo Yi, Mark Matthews, Andrea Tagliasacchi ICCV 2025
EVER: Exact Volumetric Ellipsoid Rendering for Real-time View Synthesis Alexander Mai, Peter Hedman, George Kopanas, Dor Verbin, David Futschik, Qiangeng Xu, Falko Kuester, Jonathan T. Barron, Yinda Zhang ICCV 2025
MoMaps: Semantics-Aware Scene Motion Generation with Motion Maps Jiahui Lei, Kyle Genova, George Kopanas, Noah Snavely, Leonidas Guibas ICCV 2025
Does 3D Gaussian Splatting Need Accurate Volumetric Rendering? Adam Celarek, Georgios Kopanas, George Drettakis, Michael Wimmer, Bernhard Kerbl Eurographics 2025
Synthetic Prior for Few-Shot Drivable Head Avatar Inversion Wojciech Zielonka, Stephan J Garbin, Alexandros Lattas, George Kopanas, Paulo Gotardo, Thabo Beeler, Justus Thies, Timo Bolkart CVPR 2025
SpotlessSplats: Ignoring Distractors in 3D Gaussian Splatting Sara Sabour, Lily Goli, George Kopanas, Mark Matthews, Dmitry Lagun, Leonidas Guibas, Alec Jacobson, David J. Fleet, Andrea Tagliasacchi SIGGRAPH 2025 - ACM Transactions on Graphics (TOG)
A hierarchical 3d gaussian representation for real-time rendering of very large datasets B Kerbl, A Meuleman, G Kopanas, M Wimmer, A Lanvin, G Drettakis SIGGRAPH 2024 - ACM Transactions on Graphics (TOG) 43 (4), 1-15
N-dimensional gaussians for fitting of high dimensional functions S Diolatzis, T Zirr, A Kuznetsov, G Kopanas, A Kaplanyan ACM SIGGRAPH 2024 Conference Papers, 1-11
Reducing the Memory Footprint of 3D Gaussian Splatting P Papantonakis, G Kopanas, B Kerbl, A Lanvin, G Drettakis Proceedings of the ACM on Computer Graphics and Interactive Techniques
Dynamic 3d gaussians: Tracking by persistent dynamic view synthesis J Luiten, G Kopanas, B Leibe, D Ramanan 2024 International Conference on 3D Vision (3DV), 2024
Improving NeRF Quality by Progressive Camera Placement for Free-Viewpoint Navigation G Kopanas, G Drettakis Vision, Modeling, and Visualization (VMV) 2023
3D Gaussian Splatting for Real-Time Radiance Field Rendering G Kopanas, B Kerbl, T Leimkühler, G Drettakis SIGGRAPH 2023 - ACM Transactions on Graphics 42 (4)
Nerfshop: Interactive editing of neural radiance fields C Jambon, B Kerbl, G Kopanas, S Diolatzis, T Leimkühler, G Drettakis Proceedings of the ACM on Computer Graphics and Interactive Techniques 6 (1)
Neural point catacaustics for novel-view synthesis of reflections G Kopanas, T Leimkühler, G Rainer, C Jambon, G Drettakis SIGGRAPH Asia 2022 - ACM Transactions on Graphics (TOG) 41 (6), 1-15
Point‐Based Neural Rendering with Per‐View Optimization G Kopanas, J Philip, T Leimkühler, G Drettakis EGSR 2021 - Computer Graphics Forum 40 (4), 29-43
Unsupervised underwater fish detection fusing flow and objectiveness D Zhang, G Kopanas, C Desai, S Chai, M Piacentino WACV 2016 - IEEE Winter Applications of Computer Vision Workshops, 1-7

News

20/06/2025 - I was nominated as an Oustanding Reviewer for CVPR 2025
28/01/2025 - Joined Runway ML as a Member of Technical Staff - Team Lead
24/10/2024 - Invited talk at RNA 003: London
22/10/2024 - Guest Lecture in Stanford invited by Leo Guibas
10/10/2024 - My PhD Thesis won the 1st EDSTIC Doctoral Prize in Computer Science
08/08/2024 - Served as reviewer for SIGGRAPH, SIGGRAPH Asia, CVPR, ECCV and EGSR during 2024
18/06/2024 - Invited talk at XRNeRF Workshop in CVPR
17/06/2024 - Invited talk at EDGE Workshop in CVPR
12/05/2024 - Served as Programme Committee for EGSR
15/04/2024 - Released a 3DGS jupyter exercise for university classes and courses
12/04/2024 - Guest Lecture in SFU invited by Andrea Tagliasacchi
15/03/2024 - Guest Lecture in KAIST invited by Minhyuk Sung
03/08/2023 - SIGGRAPH Best Paper Award for 3D Gaussian Splatting

Contact

[email protected]