# CoGaussian: A Gaussian-based open-vocabulary collaborative 3D scene understanding framework

- Source: arXiv cs.RO
- Published: 2026-10-21T04:00:00.000Z
- RoboHot: https://robohot.news/en/items/lebcltlrkbb5wazb6dnpr4agw
- Original: https://arxiv.org/abs/2610.28530

## Summary

CoGaussian proposes an open-vocabulary collaborative semantic occupancy prediction framework that uses sparse 3D Gaussians aligned with foundation models to represent scenes as a compact representation for transmitting and fusing geometric and semantic information among multiple agents, no longer relying on dense 3D voxel annotations and no longer limited to predefined semantic categories. On the Semantic-OPV2V benchmark, the method outperforms existing open-vocabulary single-agent approaches.