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MRSLaserMap: Local Multiresolution Grids for Efficient 3D Laser Mapping and Localization

  • David Droeschel
  • Sven Behnke
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9776)

Abstract

In this paper, we present a three-dimensional mapping system for mobile robots using laser range sensors. Our system provides sensor preprocessing, efficient local mapping for reliable obstacle perception, and allocentric mapping with real-time localization for autonomous navigation. The software is available as open-source ROS-based package and has been successfully employed on different robotic platforms, such as micro aerial vehicles and ground robots in different research projects and robot competitions. Core of our approach are local multiresolution grid maps and an efficient surfel-based registration method to aggregate measurements from consecutive laser scans. By using local multiresolution grid maps as central data structure in our system, we gain computational efficiency by having high resolution in the near vicinity of the robot and lower resolution with increasing distance. Furthermore, local multiresolution grid maps provide a probabilistic representation of the environment—allowing us to address dynamic objects and to distinguish between occupied, free, and unknown areas. Spatial relations between local maps are modeled in a graph-based structure, enabling allocentric mapping and localization.

Notes

Acknowledgments

This work has been supported by the European Union’s Horizon 2020 Programme under Grant Agreement 644839 (CENTAURO) and grant BE 2556/7-2 of German Research Foundation (DFG).

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Autonomous Intelligent Systems, Computer ScienceUniversity of BonnBonnGermany

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