TAO-DA: 自律操作に向けた双腕協調マニピュレーションのためのデュアルアーム視覚言語行動モデル
TAO-DA: Towards Autonomous Operation--A Dual-Arm Vision-Language-Action Model for Coordinated Manipulation
共有VLMバックボーンに腕ごとに分離したエキスパート塔を組み合わせ、言語指示と視覚意味による二段階の意図ルーティングで双腕の干渉を解消するVLAモデルを提案。タスク進捗予測モジュールで協調スケジューリングも可能にした。
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著者: Yongsheng Zhao, Han Gao, Baoping Cheng, Jingyao Tang, Dian Zhou, Deng Liang, Ji Ge, Xuanzhang Wen, Lei Zhao, Ye Wang
分類: cs.RO, cs.AI
原文アブストラクト
Vision-Language-Action (VLA) models provide a unified framework for grounding high-level semantic information into low-level robot actions, enabling scalable robotic manipulation across diverse tasks. However, existing VLA models lack explicit mechanisms to disentangle the states and intents of the two arms, leading to unintended cross-arm interference that degrades task execution success. To address this issue, we propose a symmetric Dual-Arm Expert (DAE) architecture built upon a shared Vision-Language Model (VLM) backbone with decoupled, arm-specific expert towers. Expert selection is carried out through a two-stage dual-arm intent routing scheme, in which experts are routed either by explicit language instructions in the first stage or by implicit visual semantics in the second stage. Moreover, we introduce a lightweight task progress prediction module that leverages cross-attention between the pre-chunk temporal features and semantic representations of proprioceptive and visual observations to accurately estimate frame-wise task completion progress. This module facilitates task progress synchronization to support coordinated scheduling for collaborative multi-robot tasks. Experimental results demonstrate the effectiveness of our model in dual-arm intent routing and the disentanglement of cross-arm interference, and further provide preliminary evidence of emergent skill generalization from single- to dual-arm tasks (as well as the reverse), together with cross-arm motion-domain skill transfer.