ResearchResearch paperRobotics & Embodied AI · Multimodal Models1 source · Oct 20, 2026

CoGaussian: Open-Vocabulary Gaussian-based Collaborative 3D Scene Understanding

To overcome these limitations, we present CoGaussian, an open-vocabulary Gaussian-based collaborative semantic occupancy prediction framework.

Key points

  • Collaborative perception enables agents to retrieve the scene semantics and geometry beyond the field of view of any individual agent.
  • However, existing collaborative semantic occupancy methods rely on dense 3D voxel annotations and are limited to recognizing objects within a predefined set of semantic classes.
  • CoGaussian represents a scene as a set of foundation model-aligned sparse 3D Gaussians, which serve as a compact representation for communicating and fusing geometric and semantic information across multiple agents.
  • On the Semantic-OPV2V benchmark, our method outperforms existing open-vocabulary single-agent approaches, highlighting the effectiveness of open-vocabulary collaborative scene understanding.

Sources (1)

  • [1]CoGaussian: Open-Vocabulary Gaussian-based Collaborative 3D Scene Understanding
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 20, 05:04 PM
    To overcome these limitations, we present CoGaussian, an open-vocabulary Gaussian-based collaborative semantic occupancy prediction framework.
    Collaborative perception enables agents to retrieve the scene semantics and geometry beyond the field of view of any individual agent.

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