Multi-FinGAN: Generative Coarse-To-Fine Sampling of Multi-Finger Grasps

Jens Lundell, Eric Corona, Tran Nguyen Le, Francesco Verdoja, Philippe Weinzaepfel, Grégory Rogez, Francesc Moreno-Noguer, Ville Kyrki

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

While there exists many methods for manipulating rigid objects with parallel-jaw grippers, grasping with multi-finger robotic hands remains a quite unexplored research topic. Reasoning and planning collision-free trajectories on the additional degrees of freedom of several fingers represents an important challenge that, so far, involves computationally costly and slow processes. In this work, we present Multi-FinGAN, a fast generative multi-finger grasp sampling method that synthesizes high quality grasps directly from RGB-D images in about a second. We achieve this by training in an end-to-end fashion a coarse-to-fine model composed of a classification network that distinguishes grasp types according to a specific taxonomy and a refinement network that produces refined grasp poses and joint angles. We experimentally validate and benchmark our method against a standard grasp-sampling method on 790 grasps in simulation and 20 grasps on a real Franka Emika Panda. All experimental results using our method show consistent improvements both in terms of grasp quality metrics and grasp success rate. Remarkably, our approach is up to 20-30 times faster than the baseline, a significant improvement that opens the door to feedback-based grasp re-planning and task informative grasping. Code is available at https://irobotics.aalto.fi/multi-fingan/.
Original languageEnglish
Title of host publicationProceedings of IEEE International Conference on Robotics and Automation, ICRA 2021
PublisherIEEE
Pages4495-4501
Number of pages7
ISBN (Electronic)9781728190778
ISBN (Print)9781728190785
DOIs
Publication statusPublished - 18 Oct 2021
MoE publication typeA4 Article in a conference publication
EventIEEE International Conference on Robotics and Automation - Xi'an, China
Duration: 30 May 20215 Jun 2021

Conference

ConferenceIEEE International Conference on Robotics and Automation
Abbreviated titleICRA
Country/TerritoryChina
CityXi'an
Period30/05/202105/06/2021

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