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arXiv · 2608.22896

SuperMap: A Spatio-Temporal SLAM System for Visual-Language Navigation

Shibo Zhao·Guofei Chen·Honghao Zhu·Zhiheng Li·Changwei Yao·Nader Zantout·Seungchan Kim·Wenshan Wang·Ji Zhang·Sebastian Scherer
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Abstract

Robotic navigation in human environments requires a spatio-temporal semantic representation that can rec- oncile open-vocabulary perception with long-term environmental changes. While foundation models provide strong zero-shot recognition, their predictions are intermittent and view-dependent, and naively integrating them into mapping pipelines leads to identity drift and stale semantics over time. We present SuperMap, a 4D spatio-temporal mapping framework for language-guided navigation that integrates high-frequency geometric SLAM with asynchronous open-vocabulary perception. Our core contribution is a consistency-driven mapping engine that combines 3D-aware instance association/re-activation with a principled existence-and-label confidence update to maintain stable object identities and prune outdated map content under occlusions and scene changes. SuperMap produces a queryable 4D scene-graph representation that interfaces naturally with Vision-Language Models by supporting compositional queries over object semantics, relations, We demonstrate SuperMap on benchmarks and real robots, including dynamic scenes with appearance/disappearance and relocation, and provide ablations and runtime analysis. We release the full system as open-source to provide the community with a deployable baseline for open-vocabulary spatio-temporal mapping. Project website: superodometry.com/supermap.

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Shibo Zhao, Guofei Chen, Honghao Zhu, Zhiheng Li, Changwei Yao, Nader Zantout, Seungchan Kim, Wenshan Wang, Ji Zhang, Sebastian Scherer. 2026-08-24. SuperMap: A Spatio-Temporal SLAM System for Visual-Language Navigation. https://arxiv.org/abs/2608.22896

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