Tactile Behaviors with the Vision-Based Tactile Sensor FingerVision

Tactile Behaviors with the Vision-Based Tactile Sensor FingerVision
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基于视觉的触觉传感器 FingerVision 的触觉行为

DOI:
10.1142/s0219843619400024
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发表时间:
2019
影响因子:
1.5
通讯作者:
Atkeson, Christopher G.
Atkeson, Christopher G.
中科院分区:
计算机科学4区
文献类型:
--
作者:
Yamaguchi, Akihiko;Atkeson, Christopher G.

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本文介绍了一种基于视觉的触觉传感器FingerVision,并探讨了其在触觉行为中的实用性。FingerVision由一个标有圆点的透明弹性皮肤和一个易于制造、成本低且物理坚固的摄像头组成。与其他基于视觉的触觉传感器不同,FingerVision皮肤的完全透明性提供了多模态感觉。FingerVision感知的模态包括力和滑动的分布,以及物体信息,如距离,位置,姿势,大小,形状和纹理。滑动检测非常灵敏,因为它是通过直接应用于FingerVision相机输出的计算机视觉获得的。它提供了高分辨率的滑动检测,不依赖于接触力,即,它可以检测产生可忽略的接触力的轻质物体的滑动。本文探讨的触觉行为包括利用这一功能的操纵。例如,我们证明了FingerVision的抓取适应可以抓取折纸和其他可变形和易碎的物体,如蔬菜,水果和生鸡蛋。
This paper introduces a vision-based tactile sensor FingerVision, and explores its usefulness in tactile behaviors. FingerVision consists of a transparent elastic skin marked with dots, and a camera that is easy to fabricate, low cost, and physically robust. Unlike other vision-based tactile sensors, the complete transparency of the FingerVision skin provides multimodal sensation. The modalities sensed by FingerVision include distributions of force and slip, and object information such as distance, location, pose, size, shape, and texture. The slip detection is very sensitive since it is obtained by computer vision directly applied to the output from the FingerVision camera. It provides high-resolution slip detection, which does not depend on the contact force, i.e., it can sense slip of a lightweight object that generates negligible contact force. The tactile behaviors explored in this paper include manipulations that utilize this feature. For example, we demonstrate that grasp adaptation with FingerVision can grasp origami, and other deformable and fragile objects such as vegetables, fruits, and raw eggs.
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