no code implementations • 22 Mar 2024 • Nick Heppert, Max Argus, Tim Welschehold, Thomas Brox, Abhinav Valada
Subsequently, in the live online trajectory generation stage, we first \mbox{re-detect} all objects, then we warp the demonstration trajectory to the current scene, and finally, we trace the trajectory with the robot.
1 code implementation • 13 Dec 2023 • Eugenio Chisari, Nick Heppert, Tim Welschehold, Wolfram Burgard, Abhinav Valada
It consists of an RGB-D image encoder that leverages recent advances to detect objects and infer their pose and latent code, and a decoder to predict shape and grasps for each object in the scene.
no code implementations • 23 Oct 2023 • Iman Nematollahi, Kirill Yankov, Wolfram Burgard, Tim Welschehold
A long-standing challenge for a robotic manipulation system operating in real-world scenarios is adapting and generalizing its acquired motor skills to unseen environments.
no code implementations • 12 Jul 2023 • Fabian Schmalstieg, Daniel Honerkamp, Tim Welschehold, Abhinav Valada
We present HIMOS, a hierarchical reinforcement learning approach that learns to compose exploration, navigation, and manipulation skills.
1 code implementation • 8 May 2023 • Jan Ole von Hartz, Eugenio Chisari, Tim Welschehold, Wolfram Burgard, Joschka Boedecker, Abhinav Valada
We employ our method to learn challenging multi-object robot manipulation tasks from wrist camera observations and demonstrate superior utility for policy learning compared to other representation learning techniques.
no code implementations • 21 Mar 2023 • Johan Vertens, Nicolai Dorka, Tim Welschehold, Michael Thompson, Wolfram Burgard
By training everything end-to-end with the loss of the dynamics model, we enforce the latent mapper to learn an update rule for the latent map that is useful for the subsequent dynamics model.
1 code implementation • 17 Mar 2023 • Nicolai Dorka, Tim Welschehold, Wolfram Burgard
Early stopping based on the validation set performance is a popular approach to find the right balance between under- and overfitting in the context of supervised learning.
Model-based Reinforcement Learning reinforcement-learning +1
1 code implementation • 17 Jun 2022 • Daniel Honerkamp, Tim Welschehold, Abhinav Valada
Despite its importance in both industrial and service robotics, mobile manipulation remains a significant challenge as it requires a seamless integration of end-effector trajectory generation with navigation skills as well as reasoning over long-horizons.
no code implementations • 17 May 2022 • Jan Ole von Hartz, Eugenio Chisari, Tim Welschehold, Abhinav Valada
In recent years, policy learning methods using either reinforcement or imitation have made significant progress.
no code implementations • 5 Feb 2022 • Laura Londoño, Adrian Röfer, Tim Welschehold, Abhinav Valada
As robotic systems become more and more capable of assisting humans in their everyday lives, we must consider the opportunities for these artificial agents to make their human collaborators feel unsafe or to treat them unfairly.
1 code implementation • 29 Nov 2021 • Abdelrahman Younes, Daniel Honerkamp, Tim Welschehold, Abhinav Valada
Audio-visual navigation combines sight and hearing to navigate to a sound-emitting source in an unmapped environment.
no code implementations • 25 Nov 2021 • Iman Nematollahi, Erick Rosete-Beas, Adrian Röfer, Tim Welschehold, Abhinav Valada, Wolfram Burgard
A core challenge for an autonomous agent acting in the real world is to adapt its repertoire of skills to cope with its noisy perception and dynamics.
1 code implementation • 24 Nov 2021 • Nicolai Dorka, Tim Welschehold, Joschka Boedecker, Wolfram Burgard
Accurate value estimates are important for off-policy reinforcement learning.
no code implementations • 11 Jun 2021 • Shengchao Yan, Tim Welschehold, Daniel Büscher, Wolfram Burgard
Our reinforcement learning agent learns a policy for a centralized controller to let connected autonomous vehicles at unsignalized intersections give up their right of way and yield to other vehicles to optimize traffic flow.
1 code implementation • 7 Mar 2018 • Christian Zimmermann, Tim Welschehold, Christian Dornhege, Wolfram Burgard, Thomas Brox
We propose an approach to estimate 3D human pose in real world units from a single RGBD image and show that it exceeds performance of monocular 3D pose estimation approaches from color as well as pose estimation exclusively from depth.
Ranked #14 on 3D Human Pose Estimation on Total Capture