階層的認知と文脈認識型探索を備えた実装可能な具現化視覚言語ナビゲーションシステム
A Deployable Embodied Vision-Language Navigation System with Hierarchical Cognition and Context-Aware Exploration
実世界ロボット向けに、高速な知覚行動層と深い推論層を非同期に動作させ、共有メモリで連携するVLNシステムを提案。探索問題を重み付き巡回修理人問題として定式化し、実機でも高効率・高推論性能を実現した。
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著者: Kuan Xu, Ruimeng Liu, Yizhuo Yang, Denan Liang, Tongxing Jin, Shenghai Yuan, Chen Wang, Lihua Xie
分類: cs.RO
原文アブストラクト
Bridging the gap between embodied intelligence and embedded deployment remains a key challenge in intelligent robotic systems, where perception, reasoning, and planning must operate under strict constraints on computation, memory, energy, and real-time execution. In vision-and-language navigation (VLN), existing approaches often face a trade-off between reasoning capability and deployment efficiency on real-world platforms. In this paper, we present a deployable embodied VLN system that achieves both high efficiency and strong high-level reasoning on real-world robots. The system is decomposed into a fast perception-action layer and a deep reasoning layer running asynchronously at different time scales, with a shared memory layer enabling efficient interaction between them. To support long-horizon reasoning, we incrementally construct a compact memory graph and progressively feed decomposed subgraphs into a vision-language model (VLM). Furthermore, we formulate exploration as a Weighted Traveling Repairman Problem (WTRP) by jointly considering reasoning outcomes and the spatial distribution of candidate regions. Extensive experiments in simulation and real-world environments demonstrate improved navigation success and efficiency over existing VLN approaches while maintaining real-time performance on resource-constrained hardware. Code and additional real-world experiments are available at https://github.com/xukuanHIT/HiCo-Nav.
