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Reliable robotic grasping, especially with deformable objects such as fruits, remains a challenging task due to underactuated contact interactions with a gripper, unknown object dynamics and geometries. In this study, we propose a…

Robotics · Computer Science 2023-07-25 Yunhai Han , Kelin Yu , Rahul Batra , Nathan Boyd , Chaitanya Mehta , Tuo Zhao , Yu She , Seth Hutchinson , Ye Zhao

This paper considers learning robot locomotion and manipulation tasks from expert demonstrations. Generative adversarial imitation learning (GAIL) trains a discriminator that distinguishes expert from agent transitions, and in turn use a…

Machine Learning · Computer Science 2022-06-24 Tianyu Wang , Nikhil Karnwal , Nikolay Atanasov

Deep reinforcement learning (DRL) agents are trained through trial-and-error interactions with the environment. This leads to a long training time for dense neural networks to achieve good performance. Hence, prohibitive computation and…

Machine Learning · Computer Science 2022-05-09 Ghada Sokar , Elena Mocanu , Decebal Constantin Mocanu , Mykola Pechenizkiy , Peter Stone

Developing controllers for agile locomotion is a long-standing challenge for legged robots. Reinforcement learning (RL) and Evolution Strategy (ES) hold the promise of automating the design process of such controllers. However, dedicated…

Robotics · Computer Science 2020-08-04 Yujin Tang , Jie Tan , Tatsuya Harada

Human ability of both versatile grasping of given objects and grasping of novel (as of yet unseen) objects is truly remarkable. This probably arises from the experience infants gather by actively playing around with diverse objects.…

Robotics · Computer Science 2016-11-22 Philipp Zech , Hanchen Xiong , Justus Piater

Reinforcement learning is a promising method for robotic grasping as it can learn effective reaching and grasping policies in difficult scenarios. However, achieving human-like manipulation capabilities with sophisticated robotic hands is…

Robotics · Computer Science 2022-06-29 Martin Schuck , Jan Brüdigam , Alexandre Capone , Stefan Sosnowski , Sandra Hirche

Generative adversarial imitation learning (GAIL) has attracted increasing attention in the field of robot learning. It enables robots to learn a policy to achieve a task demonstrated by an expert while simultaneously estimating the reward…

Machine Learning · Computer Science 2019-11-04 Kyoichiro Kobayashi , Takato Horii , Ryo Iwaki , Yukie Nagai , Minoru Asada

When transporting an object, we unconsciously adapt our movement to its properties, for instance by slowing down when the item is fragile. The most relevant features of an object are immediately revealed to a human observer by the way the…

Humans, this species expert in grasp detection, can grasp objects by taking into account hand-object positioning information. This work proposes a method to enable a robot manipulator to learn the same, grasping objects in the most optimal…

We introduce the dynamic grasp synthesis task: given an object with a known 6D pose and a grasp reference, our goal is to generate motions that move the object to a target 6D pose. This is challenging, because it requires reasoning about…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Sammy Christen , Muhammed Kocabas , Emre Aksan , Jemin Hwangbo , Jie Song , Otmar Hilliges

In this paper we present a Deep Reinforcement Learning approach to solve dynamic cloth manipulation tasks. Differing from the case of rigid objects, we stress that the followed trajectory (including speed and acceleration) has a decisive…

Robotics · Computer Science 2020-03-06 Rishabh Jangir , Guillem Alenya , Carme Torras

Grasping an object is a matter of first moving a prehensile organ at some position in the world, and then managing the contact relationship between the prehensile organ and the object. Once the contact relationship has been established and…

Robotics · Computer Science 2016-05-02 Jean-Paul Laumond

Learning agile skills is one of the main challenges in robotics. To this end, reinforcement learning approaches have achieved impressive results. These methods require explicit task information in terms of a reward function or an expert…

Robotics · Computer Science 2022-11-22 Chenhao Li , Marin Vlastelica , Sebastian Blaes , Jonas Frey , Felix Grimminger , Georg Martius

Reinforcement learning (RL) has achieved enormous progress in solving various sequential decision-making problems, such as control tasks in robotics. Since policies are overfitted to training environments, RL methods have often failed to be…

Robotics · Computer Science 2023-03-21 Xiao Wang , Saasha Nair , Matthias Althoff

Dexterous robotic hands have the capability to interact with a wide variety of household objects to perform tasks like grasping. However, learning robust real world grasping policies for arbitrary objects has proven challenging due to the…

Robotics · Computer Science 2022-10-26 Zoey Qiuyu Chen , Karl Van Wyk , Yu-Wei Chao , Wei Yang , Arsalan Mousavian , Abhishek Gupta , Dieter Fox

Robotic research encounters a significant hurdle when it comes to the intricate task of grasping objects that come in various shapes, materials, and textures. Unlike many prior investigations that heavily leaned on specialized point-cloud…

Robotics · Computer Science 2024-03-15 Chang Liu , Kejian Shi , Kaichen Zhou , Haoxiao Wang , Jiyao Zhang , Hao Dong

This work presents reinforcement learning (RL)-driven data augmentation to improve the generalization of vision-action (VA) models for dexterous grasping. While real-to-sim-to-real frameworks, where a few real demonstrations seed…

Robotics · Computer Science 2025-04-28 Atsushi Kanehira , Naoki Wake , Kazuhiro Sasabuchi , Jun Takamatsu , Katsushi Ikeuchi

Training agents to autonomously learn how to use anthropomorphic robotic hands has the potential to lead to systems capable of performing a multitude of complex manipulation tasks in unstructured and uncertain environments. In this work, we…

Robotics · Computer Science 2021-05-18 Henry Charlesworth , Giovanni Montana

Grasping small objects surrounded by unstable or non-rigid material plays a crucial role in applications such as surgery, harvesting, construction, disaster recovery, and assisted feeding. This task is especially difficult when fine…

Robotics · Computer Science 2023-06-29 Yunchu Zhang , Liyiming Ke , Abhay Deshpande , Abhishek Gupta , Siddhartha Srinivasa

Deep reinforcement learning (RL) has enabled training action-selection policies, end-to-end, by learning a function which maps image pixels to action outputs. However, it's application to visuomotor robotic policy training has been limited…

Robotics · Computer Science 2019-09-18 Xi Chen , Ali Ghadirzadeh , Mårten Björkman , Patric Jensfelt