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Sensors 2016, 16(8), 1302; doi:10.3390/s16081302

Conditional Random Field-Based Offline Map Matching for Indoor Environments

1
Faculty of Engineering, University of Deusto, Av. Universidades, 24, Bilbao 48007, Spain
2
DeustoTech-Fundación Deusto, Fundación Deusto, Av. Universidades, 24, Bilbao 48007, Spain
3
Department of Architecture, Jordan University of Science and Technology, Irbid 22110, Jordan
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 10 June 2016 / Revised: 10 August 2016 / Accepted: 12 August 2016 / Published: 16 August 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [3555 KB, uploaded 16 August 2016]   |  

Abstract

In this paper, we present an offline map matching technique designed for indoor localization systems based on conditional random fields (CRF). The proposed algorithm can refine the results of existing indoor localization systems and match them with the map, using loose coupling between the existing localization system and the proposed map matching technique. The purpose of this research is to investigate the efficiency of using the CRF technique in offline map matching problems for different scenarios and parameters. The algorithm was applied to several real and simulated trajectories of different lengths. The results were then refined and matched with the map using the CRF algorithm. View Full-Text
Keywords: offline map matching; indoor positioning; indoor localization; navigation systems; conditional random fields; map modelling; inertial sensors; mobility of pedestrians offline map matching; indoor positioning; indoor localization; navigation systems; conditional random fields; map modelling; inertial sensors; mobility of pedestrians
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bataineh, S.; Bahillo, A.; Díez, L.E.; Onieva, E.; Bataineh, I. Conditional Random Field-Based Offline Map Matching for Indoor Environments. Sensors 2016, 16, 1302.

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