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arXiv 2401.16802cs.RO
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基于动觉的欠驱动机器人手在握物体识别

Kinesthetic-based In-Hand Object Recognition with an Underactuated Robotic Hand

Carnegie Mellon University(卡内基梅隆大学);Tel-Aviv University(特拉维夫大学)

Julius Arolovitch, Osher Azulay, Avishai Sintov

AI总结:

针对欠驱动机械手无触觉传感器、视觉易遮挡导致在握物体识别难的问题,提出仅利用执行器位置和扭矩的动觉识别方法,结合实时多数投票实现近95%识别率,还可区分形状类别。

摘要:

基于腱绳的欠驱动机械手旨在实现结构简单、柔顺且成本低廉的特点。这类机械手通常采用3D打印制造,且未配备触觉传感器,因此无法通过直接触觉传感完成在握物体识别任务。加装触觉传感器会使硬件结构复杂化,并增加机械手的额外成本;此外,常用的视觉感知方法也可能因遮挡问题而无法使用。本文探究了在欠驱动机械手进行在握操作的过程中,动觉触觉能否提供被抓取物体几何形状的间接信息。研究仅通过感知运动过程中一段时间内的执行器位置和扭矩,证明分类器可从一组已训练的物体中识别目标,成功率高达近95%。此外,在操作过程中实施实时多数投票机制可进一步提升识别效果。研究还表明,经过训练的分类器不仅能识别特定物体,还能成功区分不同的形状类别。

英文摘要:

Tendon-based underactuated hands are intended to be simple, compliant and affordable. Often, they are 3D printed and do not include tactile sensors. Hence, performing in-hand object recognition with direct touch sensing is not feasible. Adding tactile sensors can complicate the hardware and introduce extra costs to the robotic hand. Also, the common approach of visual perception may not be available due to occlusions. In this paper, we explore whether kinesthetic haptics can provide in-direct information regarding the geometry of a grasped object during in-hand manipulation with an underactuated hand. By solely sensing actuator positions and torques over a period of time during motion, we show that a classifier can recognize an object from a set of trained ones with a high success rate of almost 95%. In addition, the implementation of a real-time majority vote during manipulation further improves recognition. Additionally, a trained classifier is also shown to be successful in distinguishing between shape categories rather than just specific objects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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