[2410.04826] A Planar-Symmetric SO(3) Representation for Learning Grasp Detection
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Computer Science > Robotics

arXiv:2410.04826 (cs)
[Submitted on 7 Oct 2024 (v1), last revised 10 Oct 2024 (this version, v2)]

Title:A Planar-Symmetric SO(3) Representation for Learning Grasp Detection

Authors:Tianyi Ko, Takuya Ikeda, Hiroya Sato, Koichi Nishiwaki
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Abstract:Planar-symmetric hands, such as parallel grippers, are widely adopted in both research and industrial fields. Their symmetry, however, introduces ambiguity and discontinuity in the SO(3) representation, which hinders both the training and inference of neural-network-based grasp detectors. We propose a novel SO(3) representation that can parametrize a pair of planar-symmetric poses with a single parameter set by leveraging the 2D Bingham distribution. We also detail a grasp detector based on our representation, which provides a more consistent rotation output. An intensive evaluation with multiple grippers and objects in both the simulation and the real world quantitatively shows our approach's contribution.
Comments: Accepted by CoRL2024
Subjects: Robotics (cs.RO)
Cite as: arXiv:2410.04826 [cs.RO]
  (or arXiv:2410.04826v2 [cs.RO] for this version)
  https://doi.org/10.48550/arXiv.2410.04826

Submission history

From: Tianyi Ko [view email]
[v1] Mon, 7 Oct 2024 08:25:59 UTC (7,417 KB)
[v2] Thu, 10 Oct 2024 06:38:12 UTC (7,417 KB)
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