用方向意图引导机器人精准转向,提升导航效率。
IntentReact: Guiding Reactive Object-Centric Navigation via Topological Intent
- 将全局拓扑信息转为低维方向信号,指导局部决策
- 在复杂环境中导航成功率显著优于现有方法
- 适合需要快速反应与长程规划结合的机器人任务
物体目标视觉导航要求机器人在部分可观测条件下推理语义结构并有效行动。现有基于物体级拓扑地图的方法可在无需密集几何重建的情况下实现长程导航,但其执行受限于全局拓扑引导与局部感知驱动控制之间的差距。具体而言,局部决策仅依赖当前视角内的观测,无法获取视野外信息,导致机器人即使初始朝向偏离目标,仍可能持续沿原方向前进,从而增加全局拓扑距离。本文提出IntentReact,一种意图条件化的物体中心导航框架,通过将全局拓扑引导编码为低维方向信号(称为意图),以调节学习的航点预测策略,使导航更符合拓扑一致性。该设计使机器人在局部观察误导时能及时重定向,朝着减少全局拓扑距离的方向移动,同时保持物体中心控制的反应性与鲁棒性。我们在大量实验中验证了该框架,结果表明其导航成功率和执行质量均优于先前的物体中心导航方法。
原文摘要 · Abstract (English)
Object-goal visual navigation requires robots to reason over semantic structure and act effectively under partial observability. Recent approaches based on object-level topological maps enable long-horizon navigation without dense geometric reconstruction, but their execution remains limited by the gap between global topological guidance and local perception-driven control. In particular, local decisions are made solely from the current egocentric observation, without access to information beyond the robot's field of view. As a result, the robot may persist along its current heading even when initially oriented away from the goal, moving toward directions that do not decrease the global topological distance. In this work, we propose IntentReact, an intent-conditioned object-centric navigation framework that introduces a compact interface between global topological planning and reactive object-centric control. Our approach encodes global topological guidance as a low-dimensional directional signal, termed intent, which conditions a learned waypoint prediction policy to bias navigation toward topologically consistent progression. This design enables the robot to promptly reorient when local observations are misleading, guiding motion toward directions that decrease global topological distance while preserving the reactivity and robustness of object-centric control. We evaluate the proposed framework through extensive experiments, demonstrating improved navigation success and execution quality compared to prior object-centric navigation methods.
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