Imagine-TAMP:部分観測下での想像誘導によるタスク・動作計画
Imagine-TAMP: Imagination-Guided Task and Motion Planning in Partial Observability
視覚言語モデルと生成シーンモデルで未観測領域を想像し、観測と操作のどちらを優先すべきかを計画段階で比較するTAMPフレームワークを提案。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Antareep Singha, Shivaram Kumar, Yoonwoo Kim, Yoonchang Sung
分類: cs.RO
原文アブストラクト
Robots operating in cluttered environments must often manipulate objects whose locations are only partially observable. A central challenge is deciding whether to acquire another observation or to first manipulate objects that may occlude the target. Conventional task and motion planning (TAMP) approaches typically make this decision using symbolic action costs or expensive geometric planning, neither of which adequately captures how likely an observation is to reveal an occluded target. We introduce Imagine-TAMP, an interleaved planning and execution framework that uses semantic and geometric imagination to compare alternative task-level strategies under partial observability before committing to expensive motion planning. A vision-language model shapes a particle belief over target locations using commonsense relationships between the target and visible objects, while a generative scene model estimates plausible geometry in unobserved regions. Given a target hypothesis and imagined scene, Imagine-TAMP generates multiple symbolic plan skeletons and assigns non-unit costs that approximate both manipulation effort and target visibility from sensing actions, distinguishing a short but poorly informative observation strategy from a longer strategy that first manipulates an occluder to better expose the target. The selected skeleton is then refined into a feasible continuous plan and executed, with new observations updating the belief and triggering replanning when necessary. Experiments show that imagination-guided evaluation improves observation-versus-manipulation decisions: in viewpoint-constrained shelf scenes, non-unit geometric evaluation increases success from 46.0% to 84.0%, while semantic belief shaping further reduces manipulation and replanning. On a real robot, the complete system reduces planning time by 32% relative to a geometry-only ablation.
関連論文
- SeeQ: 長期的ロボットマニピュレーションのための汎用価値関数の学習マニピュレーション
- グリッパを考慮した不規則物体の自動高密度パッキングマニピュレーション
- 事前学習から熟達へ:最小限の人的介入で長期的マニピュレーションを実現する実世界サブタスクRLマニピュレーション
- ForceTwin: 計測された人間の操作からロボットマニピュレーションのための物理情報デジタルツインを構築マニピュレーション
- 並列シミュレーションにおけるロボットマニピュレーションのための視覚言語報酬学習のスケーリングマニピュレーション
- 細粒度物体操作に向けて:SAM3誘導視覚運動ポリシーと持続的メモリ学習および集中視覚条件付けマニピュレーション