Sim-to-Realマニピュレーションのための因子化触覚表現と制御
Factorized Tactile Representation and Control for Sim-to-Real Manipulation
触覚のsim-to-real学習において、接触応答を接触形状・力分布・時間変化に因子分解して表現し、マスク構成に依存しない制御方策を提案。実世界のペグ挿入で35%の改善を達成。
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?
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著者: Siqi Shang, Bianca Aumann, Tye Brady, Joshua Migdal, Taskin Padir
分類: cs.RO
原文アブストラクト
Tactile sim-to-real learning must bridge simulated contact and device-specific sensor responses while preserving information needed for control. We propose a factorized tactile representation and control framework that maps normal force and contact patch to an effective contact response recoverable from sensor readings. The response is separated into contact geometry, force distribution, and temporal contact change, with representation-specific encoding and randomization. A Tactile Gated Policy preserves these representations separately through control and operates over all mask configurations without retraining. We evaluate the approach through response reconstruction, spatial alignment, force regulation, and contact-rich adversarial peg insertion in simulation and the real world, enabling the utility and transfer reliability of different tactile representations to be assessed independently. The approach achieves <1 mm contact localization, 1.69 N force-tracking error on unseen geometries, and a 35% improvement in real-world adversarial peg insertion over the unfactorized response, with different tactile representations benefiting different interactions.