Search Results for author: Sammy Christen

Found 14 papers, 2 papers with code

GraspXL: Generating Grasping Motions for Diverse Objects at Scale

no code implementations28 Mar 2024 HUI ZHANG, Sammy Christen, Zicong Fan, Otmar Hilliges, Jie Song

Moreover, we show that our framework can be deployed to different dexterous hands and work with reconstructed or generated objects.

Object

DiffH2O: Diffusion-Based Synthesis of Hand-Object Interactions from Textual Descriptions

no code implementations26 Mar 2024 Sammy Christen, Shreyas Hampali, Fadime Sener, Edoardo Remelli, Tomas Hodan, Eric Sauser, Shugao Ma, Bugra Tekin

In the grasping stage, the model only generates hand motions, whereas in the interaction phase both hand and object poses are synthesized.

Object

SynH2R: Synthesizing Hand-Object Motions for Learning Human-to-Robot Handovers

no code implementations9 Nov 2023 Sammy Christen, Lan Feng, Wei Yang, Yu-Wei Chao, Otmar Hilliges, Jie Song

In this paper, we introduce a framework that can generate plausible human grasping motions suitable for training the robot.

Physically Plausible Full-Body Hand-Object Interaction Synthesis

no code implementations14 Sep 2023 Jona Braun, Sammy Christen, Muhammed Kocabas, Emre Aksan, Otmar Hilliges

Through a hierarchical framework, we first learn skill priors for both body and hand movements in a decoupled setting.

Human-Object Interaction Detection Object +1

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

no code implementations7 Sep 2023 HUI ZHANG, Sammy Christen, Zicong Fan, Luocheng Zheng, Jemin Hwangbo, Jie Song, Otmar Hilliges

ArtiGrasp leverages reinforcement learning and physics simulations to train a policy that controls the global and local hand pose.

hand-object pose Object

Learning Human-to-Robot Handovers from Point Clouds

no code implementations CVPR 2023 Sammy Christen, Wei Yang, Claudia Pérez-D'Arpino, Otmar Hilliges, Dieter Fox, Yu-Wei Chao

We propose the first framework to learn control policies for vision-based human-to-robot handovers, a critical task for human-robot interaction.

TempCLR: Reconstructing Hands via Time-Coherent Contrastive Learning

1 code implementation1 Sep 2022 Andrea Ziani, Zicong Fan, Muhammed Kocabas, Sammy Christen, Otmar Hilliges

We introduce TempCLR, a new time-coherent contrastive learning approach for the structured regression task of 3D hand reconstruction.

Contrastive Learning Hand Pose Estimation

SFP: State-free Priors for Exploration in Off-Policy Reinforcement Learning

no code implementations26 May 2022 Marco Bagatella, Sammy Christen, Otmar Hilliges

Several methods, such as behavioral priors, are able to leverage offline data in order to efficiently accelerate reinforcement learning on complex tasks.

Continuous Control Efficient Exploration +2

D-Grasp: Physically Plausible Dynamic Grasp Synthesis for Hand-Object Interactions

1 code implementation CVPR 2022 Sammy Christen, Muhammed Kocabas, Emre Aksan, Jemin Hwangbo, Jie Song, Otmar Hilliges

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.

Motion Synthesis Object

The Six Hug Commandments: Design and Evaluation of a Human-Sized Hugging Robot with Visual and Haptic Perception

no code implementations19 Jan 2021 Alexis E. Block, Sammy Christen, Roger Gassert, Otmar Hilliges, Katherine J. Kuchenbecker

We followed all six tenets to create a new robotic platform, HuggieBot 2. 0, that has a soft, warm, inflated body (HuggieChest) and uses visual and haptic sensing to deliver closed-loop hugging.

Robotics

Learning Functionally Decomposed Hierarchies for Continuous Control Tasks with Path Planning

no code implementations14 Feb 2020 Sammy Christen, Lukas Jendele, Emre Aksan, Otmar Hilliges

We present HiDe, a novel hierarchical reinforcement learning architecture that successfully solves long horizon control tasks and generalizes to unseen test scenarios.

Continuous Control Decision Making +2

Learning Functionally Decomposed Hierarchies for Continuous Navigation Tasks

no code implementations25 Sep 2019 Lukas Jendele, Sammy Christen, Emre Aksan, Otmar Hilliges

Hierarchical Reinforcement Learning (HRL) has held the promise to enhance the capabilities of RL agents via operation on different levels of temporal abstraction.

Continuous Control Decision Making +3

Demonstration-Guided Deep Reinforcement Learning of Control Policies for Dexterous Human-Robot Interaction

no code implementations27 Jun 2019 Sammy Christen, Stefan Stevsic, Otmar Hilliges

In this paper, we propose a method for training control policies for human-robot interactions such as handshakes or hand claps via Deep Reinforcement Learning.

reinforcement-learning Reinforcement Learning (RL)

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