An IMU-based positioning system using QR-code assisting for indoor navigation

Yih Shyh Chiou, Fuan Tsai, Sheng Cheng Yeh, Wu Hsiao Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

In this paper, a positioning scheme combining inertial measurement unit (IMU) observation with QR code recognition is proposed to improve the location accuracy in an indoor environment. For the location-estimation technique, the proposed positioning scheme based on IMU observations is handled by the dead-reckoning (DR) algorithm; in terms of a QR-code-assisted calibration technique, the proposed approach is an accuracy enhancement procedure that effectively reduces the error propagation caused by DR approach. Namely, with the assisting approach to recognize the locations of the QR-code-reference nodes as landmarks, a DR-based scheme using the landmark information can calibrate the estimated location, and then the error propagation effect is reduced. The experimental results demonstrate that the location based on the proposed approach have much lower location errors in an IMU positioning platform. As compared with the non-QR-code-assisted approach, the proposed algorithm can achieve reasonably good performance.

Original languageEnglish
Title of host publicationComputer Science and Its Applications, CSA 2012
Pages655-665
Number of pages11
DOIs
StatePublished - 2012
Event4th FTRA International Conference on Computer Science and Its Applications, CSA 2012 - Jeju Island, Korea, Republic of
Duration: 22 Nov 201225 Nov 2012

Publication series

NameLecture Notes in Electrical Engineering
Volume203 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference4th FTRA International Conference on Computer Science and Its Applications, CSA 2012
Country/TerritoryKorea, Republic of
CityJeju Island
Period22/11/1225/11/12

Keywords

  • Dead reckoning
  • Error propagation
  • Inertial measurement unit
  • Location estimation
  • QR code

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