← Search

Werner Friedl

10 accepted papers

2025

CageCoOpt: Enhancing Manipulation Robustness through Caging-Guided Morphology and Policy Co-Optimization

IROS 2025

Uncertainties in contact dynamics and object geometry remain significant barriers to robust robotic manipulation. Caging helps mitigate these uncertainties by constraining an object’s mobility without requiring precise contact modeling. Existing caging research often treats morphology and policy opt

Cited by 9SourceScholar
2023

Multimodal Grasp Planner for Hybrid Grippers in Cluttered Scenes

RA-L 2023

Grasping a variety of objects is still an open problem in robotics, especially for cluttered scenarios. Multimodal grasping has been recognized as a promising strategy to improve the manipulation capabilities of a robotic system. This work presents a novel grasp planning algorithm for hybrid gripper

Cited by 30SourceScholar
2023

Task-Oriented Stiffness Setting for a Variable Stiffness Hand

ICRA 2023poster

The integration of variable stiffness actuators (VSA) in robotic systems endows them with intrinsic flexibility and therefore robustness to unknown disturbances. However, this characteristic presents a challenge: choosing the best intrinsic stiffness setting guaranteeing the required force ap-plicat…

Cited by 5SourceScholar
2021

Unknown Object Segmentation from Stereo Images

IROS 2021poster

Although instance-aware perception is a key prerequisite for many autonomous robotic applications, most of the methods only partially solve the problem by focusing solely on known object categories. However, for robots interacting in dynamic and cluttered environments, this is not realistic and seve…

Cited by 40SourcecodeScholar
2020

A Bin-Picking Benchmark for Systematic Evaluation of Robotic Pick-and-Place Systems

RA-L 2020

Pick-and-place operations constitute the majority of today's industrial robotic applications. However, comparability and reproducibility of results has remained an issue that delays further advances in this field. Evaluation of manipulation systems can be carried out at different levels, but for the

Cited by 43SourceScholar
2020

Benchmarking Hand and Grasp Resilience to Dynamic Loads

RA-L 2020

In this work, we investigate the behavior of artificial hands under impulsive load conditions. Resilience to impacts has been seldom considered in grasp and manipulation literature and benchmarks, although it is one of the most relevant issues in a number of applications involving physical interacti

Cited by 13SourceScholar
2020

Environment-Aware Grasp Strategy Planning in Clutter for a Variable Stiffness Hand

IROS 2020poster

This paper deals with the problem of planning grasp strategies on constrained and cluttered scenarios. The planner sequences the objects for grasping by considering multiple factors: (i) possible environmental constraints that can be exploited to grasp an object, (ii) object neighborhood, (iii) capa…

Cited by 10SourceScholar
2018

CLASH: Compliant Low Cost Antagonistic Servo Hands

IROS 2018poster

This paper presents the first two members of the new generation of CLASH hands, which exploit low cost actuation and rapid prototyping to create antagonistic modular and lightweight hands and grippers. The hands approach the robustness of the DLR Awiwi hand with a much lower complexity and cost. To…

Cited by 33SourceScholar
2017

Eigenmodes of Nonlinear Dynamics: Definition, Existence, and Embodiment into Legged Robots With Elastic Elements

RA-L 2017

Pogo-stick bouncing or the spring loaded inverted pendulum represents fundamental dynamics models for hopping and running in legged locomotion. However, these conceptual models are in general of lower order than the elastic multibody dynamics of versatile segmented legs. The question how to embody t

Cited by 22SourceScholar
2015

Targeted jumping of compliantly actuated hoppers based on discrete planning and switching control

IROS 2015poster

We address the operation of robotic legs with intrinsic elasticity in hopping cycles determined by the mechanical resonant properties of the system. This ensures energy efficiency and high jumping velocity and distance. Recently, we have shown in simulation that a simple, biologically inspired bang-…

Cited by 13SourceScholar