ROBOTICS
RESEARCH
Locate 3D: Real-World Object Localization via Self-Supervised Learning in 3D
April 17, 2025
Abstract
We present Locate 3D, a model for localizing objects in 3D scenes from referring expressions like “the small coffee table between the sofa and the lamp.” Locate 3D sets a new state-of-the-art on standard referential grounding benchmarks and showcases robust generalization capabilities. Notably, Locate 3D operates directly on sensor observation streams (posed RGB-D frames), enabling real-world deployment on robots and AR devices. Key to our approach is 3D-JEPA, a novel self-supervised learning (SSL) algorithm applicable to sensor point clouds. It takes as input a 3D pointcloud featurized using 2D foundation models (CLIP, DINO). Subsequently, masked prediction in latent space is employed as a pretext task to aid the self-supervised learning of contextualized pointcloud features. Once trained, the 3D-JEPA encoder is finetuned alongside a language-conditioned decoder to jointly predict 3D masks and bounding boxes. Additionally, we introduce Locate 3D Dataset, a new dataset for 3D referential grounding, spanning multiple capture setups with over 130K annotations. This enables a systematic study of generalization capabilities as well as a stronger model.
AUTHORS
Written by
Paul McVay
Sergio Arnaud
Ada Martin
Arjun Majumdar
Krishna Murthy Jatavallabhula
Phillip Thomas
Ruslan Partsey
Daniel Dugas
Abha Gejji
Alexander Sax
Vincent-Pierre Berges
Mikael Henaff
Ayush Jain
Ang Cao
Ishita Prasad
Mrinal Kalakrishnan
Nicolas Ballas
Oleksandr Maksymets
Aravind Rajeswaran
Franziska Meier
Publisher
arXiv
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