SSI-Policy: 視覚言語ロボット操作のための構造化シーンインターフェース学習
SSI-Policy: Learning Structured Scene Interfaces for Vision-Language Robotic Manipulation
RGB画像のみから深度特徴・言語接地オブジェクト配置・指示条件付き2D動作軌跡を統合する構造化シーンインターフェース(SSI)を導入し、少数デモで高精度な操作を実現するフレームワークを提案した。
詳しい要約
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2. 先行研究と比べてどこがすごい?
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著者: Kaijun Wang, Zikai Ouyang, Xuping Wu, Jinyi Hong, Wei Pan, Haibo Lu, Jia Pan, Wei Zhang, Linfang Zheng
分類: cs.RO
原文アブストラクト
Real-world robotic manipulation demands spatial grounding, task-aware reasoning, and precise control. Learning such capabilities becomes particularly challenging in the low-data regime. Prior methods often trade off scalable task-level reasoning and explicit physical structure: video-based approaches can drift geometrically over long horizons, 3D approaches often require depth sensing, and many flow/trajectory interfaces emphasize motion without an explicit RGB-only geometric representation. We introduce SSI-Policy, a modular framework built around a Structured Scene Interface (SSI) -- a unified, RGB-only intermediate representation that jointly encodes monocular depth features, language-grounded object layouts, and instruction-conditioned 2D motion trajectories. Critically, SSI is robot-agnostic and trainable from action-free video, decoupling perception from control so that the downstream policy can learn from few demonstrations. On the LIBERO benchmark with only 10 demonstrations per task, SSI-Policy improves over the strongest prior method by nearly 15\% and remains competitive with 50-demo methods that leverage large-scale external pretraining. Ablations show that geometric and motion cues provide complementary benefits within the shared interface. We further validate on 13 real-world tasks spanning spatial reasoning, cross-embodiment transfer, and contact-rich manipulation.
