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Marius Fehr

11 accepted papers

2023

maplab 2.0 - A Modular and Multi-Modal Mapping Framework

RA-L 2023

Integration of multiple sensor modalities and deep learning into Simultaneous Localization And Mapping (SLAM) systems are areas of significant interest in current research. Multi-modality is a stepping stone towards achieving robustness in challenging environments and interoperability of heterogeneo

Cited by 77SourcecodeScholar
2021

3D3L: Deep Learned 3D Keypoint Detection and Description for LiDARs

ICRA 2021poster

With the advent of powerful, light-weight 3D LiDARs, they have become the hearth of many navigation and SLAM algorithms on various autonomous systems. Pointcloud registration methods working with unstructured pointclouds such as ICP are often computationally expensive or require a good initial guess…

Cited by 19SourcecodeScholar
2020

Hybrid Topological and 3D Dense Mapping through Autonomous Exploration for Large Indoor Environments

ICRA 2020poster

Robots require a detailed understanding of the 3D structure of the environment for autonomous navigation and path planning. A popular approach is to represent the environment using metric, dense 3D maps such as 3D occupancy grids. However, in large environments the computational power required for m…

Cited by 48SourceScholar
2018

History-Aware Autonomous Exploration in Confined Environments Using MAVs

IROS 2018poster

Many scenarios require a robot to be able to explore its 3D environment online without human supervision. This is especially relevant for inspection tasks and search and rescue missions. To solve this high-dimensional path planning problem, sampling-based exploration algorithms have proven successfu…

Cited by 109SourceScholar
2018

Incremental Object Database: Building 3D Models from Multiple Partial Observations

IROS 2018poster

Collecting 3D object data sets involves a large amount of manual work and is time consuming. Getting complete models of objects either requires a 3D scanner that covers all the surfaces of an object or one needs to rotate it to completely observe it. We present a system that incrementally builds a d…

Cited by 48SourceScholar
2018

Maplab: An Open Framework for Research in Visual-Inertial Mapping and Localization

RA-L 2018

Robust and accurate visual-inertial estimation is crucial to many of today's challenges in robotics. Being able to localize against a prior map and obtain accurate and drift-free pose estimates can push the applicability of such systems even further. Most of the currently available solutions, howeve

Cited by 272SourcecodeScholar
2018

Topomap: Topological Mapping and Navigation Based on Visual SLAM Maps

ICRA 2018poster

Visual robot navigation within large-scale, semistructured environments deals with various challenges such as computation intensive path planning algorithms or insufficient knowledge about traversable spaces. Moreover, many state-of-the-art navigation approaches only operate locally instead of gaini…

Cited by 183SourceScholar
2017

TSDF-based change detection for consistent long-term dense reconstruction and dynamic object discovery

ICRA 2017poster

Robots that are operating for extended periods of time need to be able to deal with changes in their environment and represent them adequately in their maps. In this paper, we present a novel 3D reconstruction algorithm based on an extended Truncated Signed Distance Function (TSDF) that enables to c…

Cited by 93SourceScholar
2017

Voxblox: Incremental 3D Euclidean Signed Distance Fields for on-board MAV planning

IROS 2017poster

Micro Aerial Vehicles (MAVs) that operate in unstructured, unexplored environments require fast and flexible local planning, which can replan when new parts of the map are explored. Trajectory optimization methods fulfill these needs, but require obstacle distance information, which can be given by…

Cited by 768SourceScholar