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Active research group · LTCI

Multimedia team - at LTCI, Télécom Paris, Institut Polytechnique de Paris

The Multimedia (MM) team conducts research on the full life-cycle of multimedia data: from compression and transport to learning, explainability, and generation. We work where signal processing meets modern deep learning — with an emphasis on frugal, geometric, and multimodal approaches.

89+
Publications
2021–2026, peer-reviewed
6
Faculty
+ PhD students & postdocs
7
Research themes
from coding to learning
A*
Top venues
CVPR · ICCV · NeurIPS · ICLR
CVPRICCVNeurIPSICLRAAAIWACVECCVICMLACM MultimediaIEEE TPAMIIEEE TMMIEEE TIPIEEE TCSVTPattern Recognition CVPRICCVNeurIPSICLRAAAIWACVECCVICMLACM MultimediaIEEE TPAMIIEEE TMMIEEE TIPIEEE TCSVTPattern Recognition

What we work on

All themes

Linear video coding

Conventional and learning-based video compression — codecs, rate–distortion, and the boundary between hand-designed and neural pipelines.

Frugal and efficient AI

Pruning, quantization, low-rank methods, and other tools to make deep models small enough to deploy.

Geometric deep learning

Learning on graphs, manifolds, and structured domains — where the geometry of the data shapes the architecture.

Latest news

All news
Pattern Recognition · 2026

Capsule networks do not need to model everything

Riccardo Renzulli, Enzo Tartaglione, Marco Grangetto

IEEE Transactions on … · 2026

Compression in 3D Gaussian Splatting: A Survey of Methods, Trends, and Future Directions

Muhammad Salman Ali, Chaoning Zhang, Marco Cagnazzo, Giuseppe Valenzise, Enzo Tartaglione, Sung-Ho Bae

The Fourteenth … · 2026

INSTANT: COMPRESSING GRADIENTS AND ACTIVATIONS FOR RESOURCE-EFFICIENT TRAINING

Tuan-Kiet Doan, Trung-Hieu Tran, Enzo Tartaglione, Nikola Simidjievski, Van-Tam Nguyen

Proc. 2026 IEEE … · 2026

RAVE: Rate-Adaptive Visual Encoding for 3D Gaussian Splatting

Hoang-Nhat Tran, Francesco Di Sario, Gabriele Spadaro, Giuseppe Valenzise, Enzo Tartaglione

Transactions on Machine … · 2025

A Fused Gromov-Wasserstein Approach to Subgraph Contrastive Learning

Amadou S. Sangare, Nicolas Dunou, Jhony H. Giraldo, Fragkiskos D. Malliaros

Digital Twins and … · 2025

A Transductive and Inductive GNNs for Physical Moving Objects Detection in Surface Scenes for Digital Twins

Wieke Prummel, Jhony Giraldo, Badri Subudhi, Anastasia Zakharova, Thierry Bouwmans

Join us.

We're recruiting PhD students, postdocs, and interns who want to push the boundaries of frugal and structured deep learning, multimedia coding, and multimodal AI. If you like working on problems that matter — and shipping code that proves it — get in touch.

See open positions