Title
Robust Global Localization Using Laser Reflectivity
Abstract
Global localization, which determines an accurate global position without prior knowledge, is a fundamental requirement for a mobile robot. Map-based global localization gives a precise position by comparing a provided geometric map and current sensory data. Although 3D range data is preferable for 6D global localization in terms of accuracy and reliability, comparison with large 3D data is quite time-consuming. On the other hand, appearance-based global localization, which determines the global position by comparing a captured image with recorded ones, is simple and suitable for real-time processing. However, this technique does not work in the dark or in an environment in which the lighting conditions change remarkably. We herein propose a two-step strategy, which combines map-based global localization and appearance-based global localization. Instead of camera images, which are used for appearance-based global localization, we use reflectance images, which are captured by a laser range finder as a byproduct of range sensing. The effectiveness of the proposed technique is demonstrated through experiments in real environments.
Year
DOI
Venue
2013
10.20965/jrm.2013.p0038
JOURNAL OF ROBOTICS AND MECHATRONICS
Keywords
Field
DocType
global localization, appearance-based localization, map-based localization, laser range finder, reflectance image
Computer vision,Global localization,Computer science,Optics,Laser,Artificial intelligence,Reflectivity
Journal
Volume
Issue
ISSN
25
1
0915-3942
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Dongxiang Zhang191.50
Ryo Kurazume262274.18
Yumi Iwashita321223.59
Tsutomu Hasegawa448571.41