Localization System Using Invisible Visual Markers and IR Camera for Wearable Augmented Reality

DOI IR HANDLE Web Site 28 Citations Open Access
  • Nakazato Yusuke
    Graduate School of Information Science, Nara Institute of Science and Technology
  • Kanbara Masayuki
    Graduate School of Information Science, Nara Institute of Science and Technology
  • Yokoya Naokazu
    Graduate School of Information Science, Nara Institute of Science and Technology

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Other Title
  • ウェアラブル拡張現実感のための不可視マーカと赤外線カメラを用いた位置・姿勢推定(「複合現実感3」特集)
  • ウェアラブル拡張現実感のための不可視マーカと赤外線カメラを用いた位置・姿勢推定
  • ウェアラブル カクチョウ ゲンジツカン ノ タメ ノ フカシ マーカ ト セキガイセン カメラ オ モチイタ イチ シセイ スイテイ

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Abstract

To realize an augmented reality (AR) system using a wearable computer, the exact position and orientation of a user are required. We propose a localization method which is based on using an IR camera and invisible visual markers consisting of translucent retro-reflectors. In the method, to stably extract the regions of markers from the captured images, the camera captures the reflection of IR LEDs that are flashed on and off continuously. In experiments, we first describe the quantitative evaluation in computer simulation to decide the alignment of markers in real environments. We then carry out the localization experiments in real environments in which markers are installed based on the marker alignment decided by simulations. Finally, we develop a wearable augmented reality system using the proposed localization system.

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