Tac3D：力分布計測と摩擦係数分布推定のための新しい視覚ベース触覚センサ
Tac3D: A Novel Vision-based Tactile Sensor for Measuring Forces Distribution and Estimating Friction Coefficient Distribution
仮想両眼視を触覚センサに初めて適用し、3次元接触面形状と接触力分布を簡便かつ低コストで計測できるTac3Dセンサを提案。さらに摩擦係数分布の推定と物体3Dモデルの再構成を実現した。
著者: Lunwei Zhang, Yue Wang, Yao Jiang
分類: cs.RO
原文アブストラクト
The importance of force perception in interacting with the environment was proven years ago. However, it is still a challenge to measure the contact force distribution accurately in real-time. In order to break through this predicament, we propose a new vision-based tactile sensor, the Tac3D sensor, for measuring the three-dimensional contact surface shape and contact force distribution. In this work, virtual binocular vision is first applied to the tactile sensor, which allows the Tac3D sensor to measure the three-dimensional tactile information in a simple and efficient way and has the advantages of simple structure, low computational costs, and inexpensive. Then, we used contact surface shape and force distribution to estimate the friction coefficient distribution in contact region. Further, combined with the global position of the tactile sensor, the 3D model of the object with friction coefficient distribution is reconstructed. These reconstruction experiments not only demonstrate the excellent performance of the Tac3D sensor but also imply the possibility to optimize the action planning in grasping based on the friction coefficient distribution of the object.
