arXiv AI By Changyeon Lee, Kelin Yu, Zheng Wei, Shuna Ni, Ruohan Gao

OdorSpaces: Visual-Olfactory Embodied Navigation in 3D Environments

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OdorSpaces is a physics‑based simulation platform that extends Habitat‑Sim with 3D odor transport and dispersion modeled by Fire Dynamics Simulator, allowing agents to navigate photorealistic indoor environments using both visual and olfactory data. The benchmark presents two source‑seeking tasks—an invisible gas‑leak and an early‑stage fire—providing a realistic testbed for visual‑olfactory embodied navigation. An initial multimodal reinforcement learning policy that fuses visual observations with temporal olfactory measurements outperforms several baselines, establishing a strong reference for future research.

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