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Lukas Bernreiter

9 accepted papers

2023

SphNet: A Spherical Network for Semantic Pointcloud Segmentation

ICRA 2023poster

Semantic segmentation for robotic systems can enable a wide range of applications, from self-driving cars and augmented reality systems to domestic robots. We argue that a spherical representation is a natural one for egocentric pointclouds. Thus, in this work, we present a novel framework exploitin…

Cited by 2SourceScholar
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
2022

Collaborative Robot Mapping using Spectral Graph Analysis

ICRA 2022poster

In this paper, we deal with the problem of creating globally consistent pose graphs in a centralized multi-robot SLAM framework. For each robot to act autonomously, individual onboard pose estimates and maps are maintained, which are then communicated to a central server to build an optimized global…

Cited by 15SourceScholar
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
2021

Certainty Aware Global Localisation Using 3D Point Correspondences

RA-L 2021

We propose a probabilistic framework for multi-modal global localisation using 3D point correspondences without needing to integrate over SE(3) for Bayesian inference. A finite set of transformation candidates is constructed by decomposing the known global map into local places and computing the max

Cited by 2SourceScholar
2021

PHASER: A Robust and Correspondence-Free Global Pointcloud Registration

RA-L 2021

We propose PHASER, a correspondence-free global registration of sensor-centric pointclouds that is robust to noise, sparsity, and partial overlaps. Our method can seamlessly handle multimodal information, and does not rely on keypoint nor descriptor preprocessing modules. By exploiting properties of

Cited by 37SourcecodeScholar
2021

Spherical Multi-Modal Place Recognition for Heterogeneous Sensor Systems

ICRA 2021poster

In this paper, we propose a robust end-to-end multi-modal pipeline for place recognition where the sensor systems can differ from the map building to the query. Our approach operates directly on images and LiDAR scans without requiring any local feature extraction modules. By projecting the sensor d…

Cited by 23SourcecodeScholar
2020

Accurate Mapping and Planning for Autonomous Racing

IROS 2020poster

This paper presents the perception, mapping, and planning pipeline implemented on an autonomous race car. It was developed by the 2019 AMZ driverless team for the Formula Student Germany (FSG) 2019 driverless competition, where it won 1st place overall. The presented solution combines early fusion o…

Cited by 31SourceScholar
2019

Multiple Hypothesis Semantic Mapping for Robust Data Association

RA-L 2019

In this letter, we present a semantic mapping approach with multiple hypothesis tracking for data association. As semantic information has the potential to overcome ambiguity in measurements and place recognition, it forms an eminent modality for autonomous systems. This is particularly evident in u

Cited by 23SourceScholar