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The ability to recover from an unexpected external perturbation is a fundamental motor skill in bipedal locomotion. An effective response includes the ability to not just recover balance and maintain stability but also to fall in a safe…

Robotics · Computer Science 2022-01-06 Visak Kumar

Recent advances of locomotion controllers utilizing deep reinforcement learning (RL) have yielded impressive results in terms of achieving rapid and robust locomotion across challenging terrain, such as rugged rocks, non-rigid ground, and…

Robotics · Computer Science 2024-03-07 Zifan Xu , Amir Hossain Raj , Xuesu Xiao , Peter Stone

Developing robust walking controllers for bipedal robots is a challenging endeavor. Traditional model-based locomotion controllers require simplifying assumptions and careful modelling; any small errors can result in unstable control. To…

Robotics · Computer Science 2021-03-29 Zhongyu Li , Xuxin Cheng , Xue Bin Peng , Pieter Abbeel , Sergey Levine , Glen Berseth , Koushil Sreenath

This paper presents a novel model-free reinforcement learning (RL) framework to design feedback control policies for 3D bipedal walking. Existing RL algorithms are often trained in an end-to-end manner or rely on prior knowledge of some…

Robotics · Computer Science 2019-10-07 Guillermo A. Castillo , Bowen Weng , Wei Zhang , Ayonga Hereid

Loco-manipulation of quadrupedal robots has broadened robotic applications, but using legs as manipulators often compromises locomotion, while mounting arms complicates the system. To mitigate this issue, we introduce bipedalism for…

Robotics · Computer Science 2025-07-29 Yuyou Zhang , Radu Corcodel , Ding Zhao

Pedipulation leverages the feet of legged robots for mobile manipulation, eliminating the need for dedicated robotic arms. While previous works have showcased blind and task-specific pedipulation skills, they fail to account for static and…

Robotics · Computer Science 2024-11-05 Jonas Stolle , Philip Arm , Mayank Mittal , Marco Hutter

In nature, legged animals have developed the ability to adapt to challenging terrains through perception, allowing them to plan safe body and foot trajectories in advance, which leads to safe and energy-efficient locomotion. Inspired by…

Robotics · Computer Science 2023-10-12 Haojie Shi , Qingxu Zhu , Lei Han , Wanchao Chi , Tingguang Li , Max Q. -H. Meng

Parkour is a grand challenge for legged locomotion, even for quadruped robots, requiring active perception and various maneuvers to overcome multiple challenging obstacles. Existing methods for humanoid locomotion either optimize a…

Robotics · Computer Science 2024-09-27 Ziwen Zhuang , Shenzhe Yao , Hang Zhao

Multi-legged robots offer enhanced stability in complex terrains, yet autonomously learning natural and robust motions in such environments remains challenging. Drawing inspiration from animals' progressive learning patterns, from simple to…

Robotics · Computer Science 2024-01-24 Yinghui Li , Jinze Wu , Xin Liu , Weizhong Guo , Yufei Xue

We present a footstep planning policy for quadrupedal locomotion that is able to directly take into consideration a-priori safety information in its decisions. At its core, a learning process analyzes terrain patches, classifying each…

Robotics · Computer Science 2025-01-30 Shafeef Omar , Lorenzo Amatucci , Victor Barasuol , Giulio Turrisi , Claudio Semini

In this work, we propose a learning approach for 3D dynamic bipedal walking when footsteps are constrained to stepping stones. While recent work has shown progress on this problem, real-world demonstrations have been limited to relatively…

Robotics · Computer Science 2022-05-05 Helei Duan , Ashish Malik , Mohitvishnu S. Gadde , Jeremy Dao , Alan Fern , Jonathan Hurst

This paper presents a novel framework for learning robust bipedal walking by combining a data-driven state representation with a Reinforcement Learning (RL) based locomotion policy. The framework utilizes an autoencoder to learn a…

Robotics · Computer Science 2023-09-28 Guillermo A. Castillo , Bowen Weng , Wei Zhang , Ayonga Hereid

Quadrupedal robots resemble the physical ability of legged animals to walk through unstructured terrains. However, designing a controller for quadrupedal robots poses a significant challenge due to their functional complexity and requires…

Robotics · Computer Science 2023-03-06 I Made Aswin Nahrendra , Byeongho Yu , Hyun Myung

Reinforcement learning (RL) often necessitates a meticulous Markov Decision Process (MDP) design tailored to each task. This work aims to address this challenge by proposing a systematic approach to behavior synthesis and control for…

Robotics · Computer Science 2024-10-18 Jean-Pierre Sleiman , Mayank Mittal , Marco Hutter

Achieving stability and robustness is the primary goal of biped locomotion control. Recently, deep reinforce learning (DRL) has attracted great attention as a general methodology for constructing biped control policies and demonstrated…

Graphics · Computer Science 2020-07-31 Hwangpil Park , Ri Yu , Yoonsang Lee , Kyungho Lee , Jehee Lee

The robustness of legged locomotion is crucial for quadrupedal robots in challenging terrains. Recently, Reinforcement Learning (RL) has shown promising results in legged locomotion and various methods try to integrate privileged…

Robotics · Computer Science 2023-09-04 Jiyuan Shi , Chenjia Bai , Haoran He , Lei Han , Dong Wang , Bin Zhao , Mingguo Zhao , Xiu Li , Xuelong Li

This paper introduces a new approach to enhance the robustness of humanoid walking under strong perturbations, such as substantial pushes. Effective recovery from external disturbances requires bipedal robots to dynamically adjust their…

Robotics · Computer Science 2024-11-05 Tobias Egle , Yashuai Yan , Dongheui Lee , Christian Ott

Parkour is a grand challenge for legged locomotion that requires robots to overcome various obstacles rapidly in complex environments. Existing methods can generate either diverse but blind locomotion skills or vision-based but specialized…

Enabling humanoid robots to achieve natural and dynamic locomotion across a wide range of speeds, including smooth transitions from walking to running, presents a significant challenge. Existing deep reinforcement learning methods typically…

Robotics · Computer Science 2025-09-26 Qingpeng Li , Chengrui Zhu , Yanming Wu , Xin Yuan , Zhen Zhang , Jian Yang , Yong Liu

Teaching an anthropomorphic robot from human example offers the opportunity to impart humanlike qualities on its movement. In this work we present a reinforcement learning based method for teaching a real world bipedal robot to perform…