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Kai. O. Arras

28 accepted papers

2025

FunGraph: Functionality Aware 3D Scene Graphs for Language-Prompted Scene Interaction

IROS 2025

The concept of 3D scene graphs is increasingly recognized as a powerful semantic and hierarchical representation of the environment. Current approaches often address this at a coarse, object-level resolution. In contrast, our goal is to develop a representation that enables robots to directly intera

Cited by 12SourcecodeScholar
2024

STARK: A Unified Framework for Strongly Coupled Simulation of Rigid and Deformable Bodies with Frictional Contact

ICRA 2024poster

The use of simulation in robotics is increasingly widespread for the purpose of testing, synthetic data generation and skill learning. A relevant aspect of simulation for a variety of robot applications is physics-based simulation of robot-object interactions. This involves the challenge of accurate…

Cited by 6SourceScholar
2023

CLiFF-LHMP: Using Spatial Dynamics Patterns for Long- Term Human Motion Prediction

IROS 2023poster

Human motion prediction is important for mobile service robots and intelligent vehicles to operate safely and smoothly around people. The more accurate predictions are, particularly over extended periods of time, the better a system can, e.g., assess collision risks and plan ahead. In this paper, we…

Cited by 11SourcecodeScholar
2023

Proactive Model Predictive Control with Multi-Modal Human Motion Prediction in Cluttered Dynamic Environments

IROS 2023poster

For robots navigating in dynamic environments, exploiting and understanding uncertain human motion prediction is key to generate efficient, safe and legible actions. The robot may perform poorly and cause hindrances if it does not reason over possible, multi-modal future social interactions. With th…

Cited by 12SourceScholar
2023

Semantically Informed MPC for Context-Aware Robot Exploration

IROS 2023poster

We investigate the task of object goal navigation in unknown environments where a target object is given as a semantic label (e.g. find a couch). This task is challenging as it requires the robot to consider the semantic context in diverse settings (e.g. TVs are often nearby couches). Most of the pr…

Cited by 3SourceScholar
2021

Bench-MR: A Motion Planning Benchmark for Wheeled Mobile Robots

RA-L 2021

Planning smooth and energy-efficient paths for wheeled mobile robots is a central task for applications ranging from autonomous driving to service and intralogistic robotics. Over the past decades, several sampling-based motion-planning algorithms, extend functions and post-smoothing algorithms have

Cited by 49SourceScholar
2021

Cross-Modal Analysis of Human Detection for Robotics: An Industrial Case Study

IROS 2021poster

Advances in sensing and learning algorithms have led to increasingly mature solutions for human detection by robots, particularly in selected use-cases such as pedestrian detection for self-driving cars or close-range person detection in consumer settings. Despite this progress, the simple question…

Cited by 20SourceScholar
2021

Guest Editorial: Introduction to the Special Issue on Long-Term Human Motion Prediction

RA-L 2021

The articles in this special section focus on long term human motion prediction. This represents a key ability for advanced autonomous systems, especially if they operate in densely crowded and highly dynamic environments. In those settings understanding and anticipating human movements is fundament

Cited by 2SourceScholar
2021

Learning Occupancy Priors of Human Motion From Semantic Maps of Urban Environments

RA-L 2021

Understanding and anticipating human activity is an important capability for intelligent systems in mobile robotics, autonomous driving, and video surveillance. While learning from demonstrations with on-site collected trajectory data is a powerful approach to discover recurrent motion patterns, gen

Cited by 14SourceScholar
2020

Accurate detection and 3D localization of humans using a novel YOLO-based RGB-D fusion approach and synthetic training data

ICRA 2020poster

While 2D object detection has made significant progress, robustly localizing objects in 3D space under presence of occlusion is still an unresolved issue. Our focus in this work is on real-time detection of human 3D centroids in RGB-D data. We propose an image-based detection approach which extends…

Cited by 31SourceScholar
2020

An NMPC Approach using Convex Inner Approximations for Online Motion Planning with Guaranteed Collision Avoidance

ICRA 2020poster

Even though mobile robots have been around for decades, trajectory optimization and continuous time collision avoidance remain subject of active research. Existing methods trade off between path quality, computational complexity, and kinodynamic feasibility. This work approaches the problem using a…

Cited by 40SourceScholar
2020

Multi-Path Learning for Object Pose Estimation Across Domains

CVPR 2020poster

We introduce a scalable approach for object pose estimation trained on simulated RGB views of multiple 3D models together. We learn an encoding of object views that does not only describe an implicit orientation of all objects seen during training, but can also relate views of untrained objects. Our…

Cited by 122PDFcodeScholar
2020

Plug-and-Play SLAM: A Unified SLAM Architecture for Modularity and Ease of Use

IROS 2020poster

Simultaneous Localization and Mapping (SLAM) is considered a mature research field with numerous applications and publicly available open-source systems. Despite this maturity, existing SLAM systems often rely on ad-hoc implementations or are tailored to predefined sensor setups. In this work, we ta…

Cited by 18SourceScholar
2020

THÖR: Human-Robot Navigation Data Collection and Accurate Motion Trajectories Dataset

RA-L 2020

Understanding human behavior is key for robots and intelligent systems that share a space with people. Accordingly, research that enables such systems to perceive, track, learn and predict human behavior as well as to plan and interact with humans has received increasing attention over the last year

Cited by 94SourceScholar
2019

Better Lost in Transition Than Lost in Space: SLAM State Machine

IROS 2019poster

A Simultaneous Localization and Mapping (SLAM) system is a complex program consisting of several interconnected components with different functionalities such as optimization, tracking or loop detection. Whereas the literature addresses in detail how enhancing the algorithmic aspects of the individu…

Cited by 6SourceScholar
2019

Informed Information Theoretic Model Predictive Control

ICRA 2019poster

The problem of minimizing cost in nonlinear control systems with uncertainties or disturbances remains a major challenge. Model predictive control (MPC), and in particular sampling-based MPC has recently shown great success in complex domains such as aggressive driving with highly nonlinear dynamics…

Cited by 21SourceScholar
2018

Gradient-Informed Path Smoothing for Wheeled Mobile Robots

ICRA 2018poster

Planning smooth trajectories is important for the safe, efficient and comfortable operation of mobile robots, such as wheeled robots moving in crowded environments or cars moving at high speed. Asymptotically optimal sampling-based motion planners can be used to generate such trajectories. However,…

Cited by 43SourceScholar
2018

Human Motion Prediction Under Social Grouping Constraints

IROS 2018poster

Accurate long-term prediction of human motion in populated spaces is an important but difficult task for mobile robots and intelligent vehicles. What makes this task challenging is that human motion is influenced by a large variety of factors including the person's intention, the presence, attribute…

Cited by 37SourceScholar
2018

Joint Long-Term Prediction of Human Motion Using a Planning-Based Social Force Approach

ICRA 2018poster

The ability to perceive and predict future positions of dynamic objects is essential for mobile robots and intelligent vehicles in dynamic environments. In this paper, we present a novel planning-based approach for long-term human motion prediction that accounts for local interactions and can accura…

Cited by 73SourceScholar
2018

Semantic Labeling of Indoor Environments from 3D RGB Maps

ICRA 2018poster

We present an approach to automatically assign semantic labels to rooms reconstructed from 3D RGB maps of apartments. Evidence for the room types is generated using state-of-the-art deep-learning techniques for scene classification and object detection based on automatically generated virtual RGB vi…

Cited by 30SourceScholar
2017

Kinodynamic motion planning on Gaussian mixture fields

ICRA 2017poster

We present a mobile robot motion planning approach under kinodynamic constraints that exploits learned perception priors in the form of continuous Gaussian mixture fields. Our Gaussian mixture fields are statistical multi-modal motion models of discrete objects or continuous media in the environment…

Cited by 48SourceScholar
2015

Real-time full-body human attribute classification in RGB-D using a tessellation boosting approach

IROS 2015poster

Robots that cooperate and interact with humans require the capacity to detect and track people, analyze their behavior and understand human social relations and rules. A key piece of information for such tasks are human attributes like gender, age, hair or clothing. In this paper, we address the pro…

Cited by 16SourceScholar