[Submitted on 16 Sep 2026]
Title:Grasping by interconnection: robust closing motions from coarse object templates
View a PDF of the paper titled Grasping by interconnection: robust closing motions from coarse object templates, by Julien Vanderheyden and 3 other authors
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Abstract:Dexterous robot hands must often grasp objects whose shape, size, and pose are known only approximately. Grasp planners typically require accurate object models or correct errors with feedback, but how much inaccuracy a closing motion can tolerate on its own remains unclear. To address this question, we designed a motion planner based on four principles: a coarse template of the object, human grasp types, an object-centric interaction, and compliant, sliding contacts instead of prescribed contact points. This paper presents the planner, implemented through virtual model control, and its evaluation on a Shadow Dexterous Hand. Without feedback, the planned closing motions tolerated size errors of about 1cm and pose errors of several centimeters and tens of degrees, a wider range than a state-of-the-art data-driven planner in 25 of 27 tested conditions. They also grasped 82.5% of 80 everyday objects and succeeded within an autonomous pipeline. Robustness can thus be designed into the closing motion itself, rather than left only to feedback. This planner opens a path toward reliable manipulation in uncertain settings, which we will pursue by combining it with adaptive feedback control on the physical hand.
Subjects:
Robotics (cs.RO)
Cite as: arXiv:2609.19228 [cs.RO]
(or arXiv:2609.19228v1 [cs.RO] for this version)
https://doi.org/10.48550/arXiv.2609.19228
arXiv-issued DOI via DataCite
Submission history
From: Julien Vanderheyden [view email] [v1] Wed, 16 Sep 2026 14:41:31 UTC (4,331 KB)
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