PBD-AG: 不確実性を考慮した検査を備えた持続的ベースライン-デルタ能動グラフによる長時間稼働サービスロボットのための世界モデル
PBD-AG: Persistent Baseline-Delta Active Graphs with Uncertainty-Aware Inspection for Long-Horizon Service Robots
長時間稼働するサービスロボット向けに、安定した構造物と変化する物体イベントを分離した持続的な世界モデルを構築するフレームワークを提案。ロボットが自律的に環境を探索し、物体の状態を確率的に管理し、検査視点を選択することで、長期的な認識の信頼性を向上させる。
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著者: Shuo Bao, Wei Dong, Shuyue Zhang, Ming Shang, Yuchen Huang, Han Yu, Chengjie Xu, Yiheng Bi, Kai Sun, Fuchun Sun, Xinzhou Wang
分類: cs.RO
原文アブストラクト
Long-horizon service robots require persistent world models that can be built autonomously in unseen environments and revised as task-relevant objects change. Existing methods rely on online mapping, which accumulates localization and observation errors, static scene representations that cannot capture persistent object changes, or holistic vision-language predictions that lack verifiable 3D geometric evidence. We present PBD-AG, a persistent baseline-delta active graph framework that decouples robot-verified stable fixtures from revisable dynamic object events. Under our framework, the robot autonomously bootstraps the structural baseline from onboard exploration and inspects discovered fixtures to ground hierarchical object beliefs. PBD-AG maintains reliability-weighted object states over geometry, semantics, identity, existence, and support relations, utilizing a geometric visibility gate to mitigate false deletions under occlusion. Inspection viewpoints are selected by a graph-conditioned policy that balances target coverage, travel cost, collision risk, and redundant observation. Simulation experiments in multiple environments and under controlled dynamic evaluation show higher aggregate coarse-fixture F1 than capability-matched controls, as well as stronger identity continuity and event recall. A qualitative physical-robot demonstration further illustrates integration with onboard sensing, providing a traceable world model for long-horizon robotic perception. The project page of PBD-AG is available at https://shuobao214.github.io/PBD-AG/