CARTO: Category and Joint Agnostic Reconstruction of ARTiculated Objects

Nick Heppert, Muhammad Zubair Irshad, Sergey Zakharov, Katherine Liu, Rares Ambrus +3 more
2/14/2026

No official code found. Best implementation: robot-learning-freiburg/CARTO (25 stars, last commit 2023-09-21).

Abstract

We present CARTO, a novel approach for reconstructing multiple articulated objects from a single stereo RGB observation. We use implicit object-centric representations and learn a single geometry and articulation decoder for multiple object categories. Despite training on multiple categories, our decoder achieves a comparable reconstruction accuracy to methods that train bespoke decoders separately for each category. Combined with our stereo image encoder we infer the 3D shape, 6D pose, size, joint type, and the joint state of multiple unknown objects in a single forward pass. Our method achieves a 20.4% absolute improvement in mAP 3D IOU50 for novel instances when compared to a two-stage pipeline. Inference time is fast and can run on a NVIDIA TITAN XP GPU at 1 HZ for eight or less objects present. While only trained on simulated data, CARTO transfers to real-world object instances. Code and evaluation data is available at: carto. cs. uni - freiburg. de

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Code Implementations(1)

Official Implementation of CARTO: Category and Joint Agnostic Reconstruction of ARTiculated Objects

251Shell, PythonMar 24, 20233 years ago

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Cite this paper

@article{heppert2026carto,
  title  = {CARTO: Category and Joint Agnostic Reconstruction of ARTiculated Objects},
  author = {Nick Heppert and Muhammad Zubair Irshad and Sergey Zakharov and Katherine Liu and Rares Ambrus and Jeannette Bohg and Abhinav Valada and T. Kollar},
  year   = {2026},
  eprint = {2303.15782},
  archivePrefix = {arXiv},
  url    = {https://arxiv.org/pdf/2303.15782},
  journal = {CVPR 2023 2023}
}

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