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Benjamin Alt

8 accepted papers

2025

Semi-Autonomous Robotic Assistance for Gallbladder Retraction in Surgery

RA-L 2025

(Semi-)autonomous robotic assistance in minimally invasive surgery has the potential to alleviate surgical staff shortage and decrease the workload of medical professionals. These robots must execute complex tasks within unpredictable and unstructured environments encountered during surgery. Althoug

Cited by 2SourceScholar
2025

Shadow Program Inversion with Differentiable Planning: A Framework for Unified Robot Program Parameter and Trajectory Optimization

ICRA 2025

This paper presents Shadow Program Inversion with Differentiable Planning (SPI-DP), a novel first-order optimizer capable of optimizing robot programs with respect to both high-level task objectives and motion-level constraints. To that end, we introduce Differentiable Gaussian Process Motion Planni

Cited by 1SourcecodeScholar
2024

MuTT: A Multimodal Trajectory Transformer for Robot Skills

IROS 2024poster

High-level robot skills represent an increasingly popular paradigm in robot programming. However, configuring the skills’ parameters for a specific task remains a manual and time-consuming endeavor. Existing approaches for learning or optimizing these parameters often require numerous real-world exe…

Cited by 2SourceScholar
2024

RoboGrind: Intuitive and Interactive Surface Treatment with Industrial Robots

ICRA 2024poster

Surface treatment tasks such as grinding, sanding or polishing are a vital step of the value chain in many industries, but are notoriously challenging to automate. We present RoboGrind, an integrated system for the intuitive, interactive automation of surface treatment tasks with industrial robots.…

Cited by 3SourceScholar
2022

Heuristic-free Optimization of Force-Controlled Robot Search Strategies in Stochastic Environments

IROS 2022

In both industrial and service domains, a central benefit of the use of robots is their ability to quickly and reliably execute repetitive tasks. However, even relatively simple peg-in-hole tasks are typically subject to stochastic variations, requiring search motions to find relevant features such

Cited by 6SourcecodeScholar
2022

LapSeg3D: Weakly Supervised Semantic Segmentation of Point Clouds Representing Laparoscopic Scenes

IROS 2022poster

The semantic segmentation of surgical scenes is a prerequisite for task automation in robot assisted interventions. We propose LapSeg3D, a novel DNN-based approach for the voxel-wise annotation of point clouds representing surgical scenes. As the manual annotation of training data is highly time con…

Cited by 2SourceScholar
2021

Robot Program Parameter Inference via Differentiable Shadow Program Inversion

ICRA 2021poster

Challenging manipulation tasks can be solved effectively by combining individual robot skills, which must be parameterized for the concrete physical environment and task at hand. This is time-consuming and difficult for human programmers, particularly for force-controlled skills. To this end, we pre…

Cited by 14SourcecodeScholar