Characterization of vision-aided indoor localization and landmark routing

Aaron Ballew*, Shiva Srivastava, Nikolay Valtchanov, Chung Chieh Lee, Aleksandar Kuzmanovic

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

GPS is the premier method of localization and way finding in outdoor environments. Indoor environments prevent GPS from functioning properly or at all. RF-based solutions have been proposed using varieties of radio triangulation and spectral fingerprinting. Such technically attractive methods have not seen widespread adoption in places where the demand is greatest: supermarkets, shopping malls, airports, etc. This may be due to the obstacles of funding, installing, or accessing sufficient wireless infrastructure for triangulation, as well as the scalability challenge in site-by-site fingerprinting. We present a framework for characterizing indoor environments. This leads to a simple, practical approach to indoor localization and wayfinding that takes advantage of visibility relationships, limited user-input, publicly available online floorplans, and lightweight processing on a mobile phone. On-site infrastructure and site-surveys are avoided. Based on this framework we find that localization precision improves dramatically as the population of landmarks grows, though few landmarks are needed during a given input cycle. We also find that indoor wayfinding is unexpectedly insensitive to hop-count, but critically dependent on path connectedness.

Original languageEnglish (US)
Title of host publicationProceedings - 6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, IMIS 2012
Pages163-170
Number of pages8
DOIs
StatePublished - 2012
Event6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, IMIS 2012 - Palermo, Italy
Duration: Jul 4 2012Jul 6 2012

Publication series

NameProceedings - 6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, IMIS 2012

Other

Other6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, IMIS 2012
Country/TerritoryItaly
CityPalermo
Period7/4/127/6/12

Keywords

  • landmark
  • localization
  • vision
  • wayfinding

ASJC Scopus subject areas

  • Signal Processing
  • Communication

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