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Simultaneous Contact Location and Object Pose Estimation Using Proprioceptive Tactile Feedback

2022-06-02 18:40:12
Andrea Sipos, Nima Fazeli
arXiv_RO
       
Abstract

Joint estimation of grasped object pose and externally made contact on the object is central to robust and dexterous manipulation. In this paper, we propose a novel state-estimation algorithm that jointly estimates contact location and object pose in 3D using exclusively proprioceptive tactile feedback. Our approach leverages two complementary particle filters: one to estimate contact location (CPFGrasp) and another to estimate object poses (SCOPE). We implement and evaluate our approach on real-world single-arm and dual-arm robotic systems. We demonstrate how by bringing two objects into contact, the robots can infer contact location and object poses simultaneously. Our proposed method can be applied to a number of downstream tasks that require accurate pose estimates, such as assembly and insertion.

Abstract (translated)

URL

https://arxiv.org/abs/2206.01245

PDF

https://arxiv.org/pdf/2206.01245.pdf

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