STITCH: Augmented Dexterity for Suture Throws Including Thread Coordination and Handoffs
arxiv(2024)
摘要
We present STITCH: an augmented dexterity pipeline that performs Suture
Throws Including Thread Coordination and Handoffs. STITCH iteratively performs
needle insertion, thread sweeping, needle extraction, suture cinching, needle
handover, and needle pose correction with failure recovery policies. We
introduce a novel visual 6D needle pose estimation framework using a stereo
camera pair and new suturing motion primitives. We compare STITCH to baselines,
including a proprioception-only and a policy without visual servoing. In
physical experiments across 15 trials, STITCH achieves an average of 2.93
sutures without human intervention and 4.47 sutures with human intervention.
See https://sites.google.com/berkeley.edu/stitch for code and supplemental
materials.
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