ArtiGrasp: Physically Plausible Synthesis of Bi-Manual Dexterous Grasping and Articulation

Fuente: arXiv
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Hauptverfasser: Zhang, Hui, Christen, Sammy, Fan, Zicong, Zheng, Luocheng, Hwangbo, Jemin, Song, Jie, Hilliges, Otmar
Format: Preprint
Veröffentlicht: 2023
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author Zhang, Hui
Christen, Sammy
Fan, Zicong
Zheng, Luocheng
Hwangbo, Jemin
Song, Jie
Hilliges, Otmar
author_facet Zhang, Hui
Christen, Sammy
Fan, Zicong
Zheng, Luocheng
Hwangbo, Jemin
Song, Jie
Hilliges, Otmar
contents We present ArtiGrasp, a novel method to synthesize bi-manual hand-object interactions that include grasping and articulation. This task is challenging due to the diversity of the global wrist motions and the precise finger control that are necessary to articulate objects. ArtiGrasp leverages reinforcement learning and physics simulations to train a policy that controls the global and local hand pose. Our framework unifies grasping and articulation within a single policy guided by a single hand pose reference. Moreover, to facilitate the training of the precise finger control required for articulation, we present a learning curriculum with increasing difficulty. It starts with single-hand manipulation of stationary objects and continues with multi-agent training including both hands and non-stationary objects. To evaluate our method, we introduce Dynamic Object Grasping and Articulation, a task that involves bringing an object into a target articulated pose. This task requires grasping, relocation, and articulation. We show our method's efficacy towards this task. We further demonstrate that our method can generate motions with noisy hand-object pose estimates from an off-the-shelf image-based regressor.
format Preprint
id arxiv_https___arxiv_org_abs_2309_03891
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle ArtiGrasp: Physically Plausible Synthesis of Bi-Manual Dexterous Grasping and Articulation
Zhang, Hui
Christen, Sammy
Fan, Zicong
Zheng, Luocheng
Hwangbo, Jemin
Song, Jie
Hilliges, Otmar
Robotics
Computer Vision and Pattern Recognition
Machine Learning
We present ArtiGrasp, a novel method to synthesize bi-manual hand-object interactions that include grasping and articulation. This task is challenging due to the diversity of the global wrist motions and the precise finger control that are necessary to articulate objects. ArtiGrasp leverages reinforcement learning and physics simulations to train a policy that controls the global and local hand pose. Our framework unifies grasping and articulation within a single policy guided by a single hand pose reference. Moreover, to facilitate the training of the precise finger control required for articulation, we present a learning curriculum with increasing difficulty. It starts with single-hand manipulation of stationary objects and continues with multi-agent training including both hands and non-stationary objects. To evaluate our method, we introduce Dynamic Object Grasping and Articulation, a task that involves bringing an object into a target articulated pose. This task requires grasping, relocation, and articulation. We show our method's efficacy towards this task. We further demonstrate that our method can generate motions with noisy hand-object pose estimates from an off-the-shelf image-based regressor.
title ArtiGrasp: Physically Plausible Synthesis of Bi-Manual Dexterous Grasping and Articulation
topic Robotics
Computer Vision and Pattern Recognition
Machine Learning
url https://arxiv.org/abs/2309.03891