Indoor Localization Improved by Spatial Context—A Survey

Indoor localization is essential for healthcare, security, augmented reality gaming, and many other location-based services. There is currently a wealth of relevant literature on indoor localization. This article focuses on recent advances in indoor localization methods that use spatial context to i...

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Bibliographic Details
Published in:ACM computing surveys 2019-07, Vol.52 (3), p.1-35
Main Authors: Gu, Fuqiang, Hu, Xuke, Ramezani, Milad, Acharya, Debaditya, Khoshelham, Kourosh, Valaee, Shahrokh, Shang, Jianga
Format: Article
Language:English
Subjects:
Augmented reality
Computer science
Error correction
Indoor environments
Landmarks
Localization
Location based services
State-of-the-art reviews
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Summary:Indoor localization is essential for healthcare, security, augmented reality gaming, and many other location-based services. There is currently a wealth of relevant literature on indoor localization. This article focuses on recent advances in indoor localization methods that use spatial context to improve the location estimation. Spatial context in the form of maps and spatial models have been used to improve the localization by constraining location estimates in the navigable parts of indoor environments. Landmarks such as doors and corners, which are also one form of spatial context, have proved useful in assisting indoor localization by correcting the localization error. This survey gives a comprehensive review of state-of-the-art indoor localization methods and localization improvement methods using maps, spatial models, and landmarks.
ISSN:0360-0300
1557-7341
DOI:10.1145/3322241