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Frictional contact has been extensively studied as the core underlying behavior of legged locomotion and manipulation, and its nearly-discontinuous nature makes planning and control difficult even when an accurate model of the robot is…

Robotics · Computer Science 2021-03-30 Mihir Parmar , Mathew Halm , Michael Posa

Accurate state estimation plays a critical role in ensuring the robust control of humanoid robots, particularly in the context of learning-based control policies for legged robots. However, there is a notable gap in analytical research…

Robotics · Computer Science 2024-03-12 Zhicheng Wang , Wandi Wei , Ruiqi Yu , Jun Wu , Qiuguo Zhu

Manipulating clusters of deformable objects presents a substantial challenge with widespread applicability, but requires contact-rich whole-arm interactions. A potential solution must address the limited capacity for realistic model…

Accurate state estimation is a fundamental component of robotic control. In robotic manipulation tasks, as is our focus in this work, state estimation is essential for identifying the positions of objects in the scene, forming the basis of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Xinyi Ren , Jianlan Luo , Eugen Solowjow , Juan Aparicio Ojea , Abhishek Gupta , Aviv Tamar , Pieter Abbeel

To realize a robust robotic grasping system for unknown objects in an unstructured environment, large amounts of grasp data and 3D model data for the object are required, the sizes of which directly affect the rate of successful grasps. To…

Robotics · Computer Science 2021-02-02 Gang Peng , Zhenyu Ren , Hao Wang , Xinde Li

Grasping unseen objects in unconstrained, cluttered environments is an essential skill for autonomous robotic manipulation. Despite recent progress in full 6-DoF grasp learning, existing approaches often consist of complex sequential…

Robotics · Computer Science 2021-03-29 Martin Sundermeyer , Arsalan Mousavian , Rudolph Triebel , Dieter Fox

Concurrently estimating the 6-DOF pose of multiple cameras or robots---cooperative localization---is a core problem in contemporary robotics. Current works focus on a set of mutually observable world landmarks and often require inbuilt…

Robotics · Computer Science 2013-04-03 Vikas Dhiman , Julian Ryde , Jason J. Corso

Uncertainty is a major difficulty in endowing robots with autonomy. Robots often fail due to unexpected events. In robot contact tasks are often design to empirically look for force thresholds to define state transitions in a Markov chain…

Robotics · Computer Science 2017-08-02 Juan Rojas , Zhengjie Huang , Kensuke Harada

Clustering of motion trajectories is highly relevant for human-robot interactions as it allows the anticipation of human motions, fast reaction to those, as well as the recognition of explicit gestures. Further, it allows automated analysis…

Robotics · Computer Science 2024-04-29 Christoph Zelch , Jan Peters , Oskar von Stryk

According to the circumplex model of affect, an emotional response could characterized by a level of pleasure (valence) and intensity (arousal). As it reflects on the autonomic nervous system (ANS) activity, modern wearable wristbands can…

Machine Learning · Computer Science 2025-04-16 Marta A. Conceição , Antoine Dubois , Sonja Haustein , Bruno Miranda , Carlos Lima Azevedo

In this paper, we present a decentralized and communication-free collision avoidance approach for multi-robot systems that accounts for both robot localization and sensing uncertainties. The approach relies on the computation of an…

Robotics · Computer Science 2022-01-12 Hai Zhu , Bruno Brito , Javier Alonso-Mora

Contact-based estimation of object pose is challenging due to discontinuities and ambiguous observations that can correspond to multiple possible system states. This multimodality makes it difficult to efficiently sample valid hypotheses…

Detecting mental states of human users is crucial for the development of cooperative and intelligent robots, as it enables the robot to understand the user's intentions and desires. Despite their importance, it is difficult to obtain a…

Computer Vision and Pattern Recognition · Computer Science 2022-02-09 Hendric Voß , Heiko Wersing , Stefan Kopp

This paper considers a network of sensors without fusion center that may be difficult to set up in applications involving sensors embedded on autonomous drones or robots. In this context, this paper considers that the sensors must perform a…

Statistics Theory · Mathematics 2017-06-13 Dominique Pastor , Elsa Dupraz , François-Xavier Socheleau

This work presents approaches for the estimation of quantities important for the control of the momentum of a humanoid robot. In contrast to previous approaches which use simplified models such as the Linear Inverted Pendulum Model, we…

Robotics · Computer Science 2016-11-18 Nicholas Rotella , Alexander Herzog , Stefan Schaal , Ludovic Righetti

This paper describes a novel communication-spare cooperative localization algorithm for a team of mobile unmanned robotic vehicles. Exploiting an event-based estimation paradigm, robots only send measurements to neighbors when the expected…

Robotics · Computer Science 2018-02-22 Michael Ouimet , David Iglesias , Nisar Ahmed , Sonia Martinez

In this paper, we address the problem of controlling a network of mobile sensors so that a set of hidden states are estimated up to a user-specified accuracy. The sensors take measurements and fuse them online using an Information Consensus…

Robotics · Computer Science 2018-01-16 Charles Freundlich , Soomin Lee , Michael M. Zavlanos

Robots need to manipulate objects in constrained environments like shelves and cabinets when assisting humans in everyday settings like homes and offices. These constraints make manipulation difficult by reducing grasp accessibility, so…

Robotics · Computer Science 2022-11-01 Jacky Liang , Xianyi Cheng , Oliver Kroemer

This paper presents a learning-from-demonstration (LfD) framework for teaching human-robot social interactions that involve whole-body haptic interaction, i.e. direct human-robot contact over the full robot body. The performance of existing…

Robotics · Computer Science 2020-05-27 Joseph Campbell , Katsu Yamane

Previous humanoid robot research works treat the robot as a bipedal mobile manipulation platform, where only the feet and hands contact the environment. However, we humans use all body parts to interact with the world, e.g., we sit in…

Robotics · Computer Science 2025-02-04 Ziwen Zhuang , Hang Zhao