DIDO: インタラクション中心のダイナミクスを1ステップ拡散に蒸留するワールドアクションモデル
DIDO: Distilling Interaction-Centric Dynamics into One-Step Denoising for World Action Models
動画生成ベースのロボット操作モデルを1ステップ拡散に蒸留し、把持器と対象物のインタラクションを保ちつつ推論遅延を削減した手法。
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: Jing Lyu, Shuanghao Bai, Runze Xiao, Zhenyu Liao, Wenxing Tan, Zihan Tang, Ruochuan Shi, Cheng Peng, Yuheng Ji, Yihao Wang, Badong Chen, Pengwei Wang, Zhongyuan Wang, Xiaoguang Zhao
分類: cs.RO
原文アブストラクト
World Action Models (WAMs) use video generation models to predict future visual dynamics for robotic manipulation, but iterative denoising introduces additional latency for closed-loop control. We empirically find that visual content converges at different rates during denoising. Static background structure forms early, whereas the gripper and manipulated object remain blurry after the first step, with their interaction dynamics emerging only through subsequent denoising. Consequently, naively truncating a multi-step video model to one step preserves scene structure but loses the interaction-centric dynamics most critical for manipulation. To address this issue, we propose DIDO, which distills the converged dynamics of a multi-step video model into a single denoising step. DIDO combines distribution matching distillation with interaction-centric representation guidance. Beyond compressing multi-step generation into one forward pass, DIDO explicitly models the gripper, manipulated object, and their interaction using supervised bounding-box visual reasoning tokens. Additionally, DIDO aligns the target object's representations across multiple model layers with features from a pretrained DINOv3 encoder. This interaction-centric guidance helps the distilled model preserve both the relevant entities and their future dynamics in a single step, while substantially reducing inference latency. DIDO achieves an average success rate of 99.0\% on LIBERO, 76.6\% on LIBERO-Plus, and 92.0\% on RoboTwin, while also demonstrating effective transfer to long-horizon and generalization tasks in real-world robotic manipulation.