One policy to run them all : an end-to-end learning approach to multi-embodiment locomotion
(2024) 8th Conference on Robot Learning, CoRL 2024 In Proceedings of Machine Learning Research 270. p.3356-3378- Abstract
Deep Reinforcement Learning techniques are achieving state-of-the-art results in robust legged locomotion. While there exists a wide variety of legged platforms such as quadruped, humanoids, and hexapods, the field is still missing a single learning framework that can control all these different embodiments easily and effectively and possibly transfer, zero or few-shot, to unseen robot embodiments. We introduce URMA, the Unified Robot Morphology Architecture, to close this gap. Our framework brings the end-to-end Multi-Task Reinforcement Learning approach to the realm of legged robots, enabling the learned policy to control any type of robot morphology. The key idea of our method is to allow the network to learn an abstract locomotion... (More)
Deep Reinforcement Learning techniques are achieving state-of-the-art results in robust legged locomotion. While there exists a wide variety of legged platforms such as quadruped, humanoids, and hexapods, the field is still missing a single learning framework that can control all these different embodiments easily and effectively and possibly transfer, zero or few-shot, to unseen robot embodiments. We introduce URMA, the Unified Robot Morphology Architecture, to close this gap. Our framework brings the end-to-end Multi-Task Reinforcement Learning approach to the realm of legged robots, enabling the learned policy to control any type of robot morphology. The key idea of our method is to allow the network to learn an abstract locomotion controller that can be seamlessly shared between embodiments thanks to our morphology-agnostic encoders and decoders. This flexible architecture can be seen as a potential first step in building a foundation model for legged robot locomotion. Our experiments show that URMA can learn a locomotion policy on multiple embodiments that can be easily transferred to unseen robot platforms in simulation and the real world.
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- author
- Bohlinger, Nico
; Czechmanowski, Grzegorz
; Krupka, Maciej
; Kicki, Piotr
; Walas, Krzysztof
; Peters, Jan
and Tateo, Davide
LU
- publishing date
- 2024
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Locomotion, Multi-embodiment Learning, Reinforcement learning
- host publication
- 8th Conference on Robot Learning, CoRL 2024
- series title
- Proceedings of Machine Learning Research
- volume
- 270
- pages
- 23 pages
- conference name
- 8th Conference on Robot Learning, CoRL 2024
- conference location
- Munich, Germany
- conference dates
- 2024-11-06 - 2024-11-09
- external identifiers
-
- scopus:86000774426
- ISSN
- 2640-3498
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2024 Proceedings of Machine Learning Research.
- id
- cac0b448-bc89-4fd3-9840-0e1313c5f053
- alternative location
- https://www.ias.informatik.tu-darmstadt.de/uploads/Team/NicoBohlinger/one_policy_to_run_them_all.pdf
- date added to LUP
- 2025-10-16 14:01:25
- date last changed
- 2025-11-03 16:18:20
@inproceedings{cac0b448-bc89-4fd3-9840-0e1313c5f053,
abstract = {{<p>Deep Reinforcement Learning techniques are achieving state-of-the-art results in robust legged locomotion. While there exists a wide variety of legged platforms such as quadruped, humanoids, and hexapods, the field is still missing a single learning framework that can control all these different embodiments easily and effectively and possibly transfer, zero or few-shot, to unseen robot embodiments. We introduce URMA, the Unified Robot Morphology Architecture, to close this gap. Our framework brings the end-to-end Multi-Task Reinforcement Learning approach to the realm of legged robots, enabling the learned policy to control any type of robot morphology. The key idea of our method is to allow the network to learn an abstract locomotion controller that can be seamlessly shared between embodiments thanks to our morphology-agnostic encoders and decoders. This flexible architecture can be seen as a potential first step in building a foundation model for legged robot locomotion. Our experiments show that URMA can learn a locomotion policy on multiple embodiments that can be easily transferred to unseen robot platforms in simulation and the real world.</p>}},
author = {{Bohlinger, Nico and Czechmanowski, Grzegorz and Krupka, Maciej and Kicki, Piotr and Walas, Krzysztof and Peters, Jan and Tateo, Davide}},
booktitle = {{8th Conference on Robot Learning, CoRL 2024}},
issn = {{2640-3498}},
keywords = {{Locomotion; Multi-embodiment Learning; Reinforcement learning}},
language = {{eng}},
pages = {{3356--3378}},
series = {{Proceedings of Machine Learning Research}},
title = {{One policy to run them all : an end-to-end learning approach to multi-embodiment locomotion}},
url = {{https://www.ias.informatik.tu-darmstadt.de/uploads/Team/NicoBohlinger/one_policy_to_run_them_all.pdf}},
volume = {{270}},
year = {{2024}},
}