IntentNav: 从人类演示中学习空间-视觉物体导航
IntentNav: Learning Spatial-Visual Object Navigation from Human Demonstrations
AI总结:
提出IntentNav框架,通过人类演示学习类人物体导航策略,利用前沿标注和意图对齐目标实现最优性能,并零样本迁移到多种机器人平台。
摘要:
物体导航要求机器人在未知环境中搜索未观察到的目标,通过在部分可观测性下决定下一步探索位置。有效的搜索类似于人类探索:选择性探查视觉上有希望的前沿,同时依赖空间记忆避免重复访问。我们提出IntentNav,一个从人类演示中学习类人ObjectNav策略的空间-视觉模仿框架。为了从低级人类动作推断高级搜索意图,我们引入了基于前沿的人类意图标注,该方法前瞻人类演示并标注最能解释演示者未来搜索方向的前沿。我们构建了一个空间-视觉候选空间,其中BEV记忆跟踪已探索区域、未探索前沿和轨迹历史,而自我中心视觉记忆为每个候选提供语义线索。训练一个VLM策略在这些基于上下文的候选中进行选择,使用意图对齐目标以鼓励一致且类人的探索。IntentNav在MP3D、HM3D-v1和HM3D-v2 ObjectNav基准上实现了最先进的性能。所提出的候选级导航界面无需进一步VLM微调即可零样本迁移到轮式、四足和类人机器人。\href{https://anonymous.4open.science/w/IntentNav/}{项目页面}。
英文摘要:
Object navigation requires a robot to search for an unobserved target in an unknown environment by deciding where to explore next under partial observability. Effective search resembles human-like exploration: selectively probing visually promising frontiers while relying on spatial memory to avoid redundant revisits. We propose IntentNav, a spatial-visual imitation framework that learns human-like ObjectNav policies from human demonstrations. To infer high-level search intent from low-level human actions, we introduce Frontier-based Human-Intent Labeling, which looks ahead in human demonstrations and labels the frontier that best explains the demonstrator's future search direction. We construct a spatial-visual candidate space, where BEV memory tracks explored regions, unexplored frontiers, and trajectory history, while egocentric visual memory provides semantic cues for each candidate. A VLM policy is trained to select among these grounded candidates, using Intent-Aligned Objective to encourage consistent and human-like exploration. IntentNav achieves state-of-the-art performance on the MP3D, HM3D-v1 and HM3D-v2 ObjectNav benchmarks. The proposed candidate-level navigation interface transfers zero-shot to wheeled, quadruped, and humanoid robots without further VLM fine-tuning. \href{https://anonymous.4open.science/w/IntentNav/}{Project page}.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。