ファクターグラフを用いた柔軟線状物体の双腕操作における3D力推定
3D-Force Estimation for Dual-arm Manipulation of Deformable Linear Objects via Factor Graphs
ファクターグラフによる確率的定式化で、柔軟線状物体の形状を再構成しながら外力の大きさ・方向・位置を推定する手法を提案し、ノイズを含む測定で有効性を検証した。
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?
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6. 次に読むべき論文は?
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著者: Annika Delucchi, Vincenzo Di Paola, Bruno Marco Quadrelli, Matteo Zoppi
分類: cs.RO
原文アブストラクト
Estimating forces acting on Deformable Linear Objects (DLOs) is challenging due to their underactuated nature. However, reliable contact estimation is crucial to precisely control them and enable safe manipulation tasks. Differently from the various approaches presented in the literature, this work adopts a probabilistic formulation where the DLO state and sensor data are related through conditional distributions. In particular, factor graphs are used to determine the magnitude, direction, and location of a 3D force acting on a DLO, while simultaneously reconstructing its shape. Since DLOs are not actuated and are typically thin, like cables and wires, strain gauges and actuation readings are usually impractical. Therefore, to overcome this issue, this work is tested using one type of sensing information only, thus developing a generic technique suited for a wider variety of tasks. Realistic tests are performed by introducing noise into the measurements while the DLO follows a prescribed path in the presence of external forces that are accurately estimated.