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- W2572196495 abstract "There are many methods to measure indoor positions of users using positioning devices such as a magnetic or an ultrasonic sensors. Many of those devices are quite expensive and inapplicable in a wide area. We have studied an indoor user positioning technique, which is inexpensive and easy to setup, and can get the user’s position in a wide area. Our method uses many fiducial markers captured by a camera. In the technique, only a few fiducial markers have to be calibrated, while rest of them can be roughly placed. Uncalibrated markers’ positions are estimated based on adjacent markers in succession. In this paper, we improve the technique with respect to robustness for lightning conditions and flexibility for starting position. In experiment, we verified the robustness in the real environment. Keyword position detection, fiducial marker, ARToolkit 1. はじめに 近年,カーナビゲーションや,携帯電話に代表され るように,GPS を利用したナビゲーション支援や注釈 情報の表示などのユーザの位置情報を利用したサービ スが注目されている.一方,屋内環境における情報提 示に関しては,人工衛星からの電波が届かないため GPS を利用することは困難である.そこで屋内環境に おけるユーザの位置情報を取得する研究が数多く存在 する. 特殊な機器を導入せずユーザの位置に応じた情報 を提供するシステムとして NaviCam が存在する[1].こ れは,画像マーカを認識することで,そのマーカのパ ターンに応じた情報を提示するものであり,マーカが 配置された離散的な場所でのみ,ユーザの視点位置に 応じた情報の表示が可能である. カ メ ラ か ら の 画 像 の 取 得" @default.
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- W2572196495 date "2004-02-03" @default.
- W2572196495 modified "2023-10-01" @default.
- W2572196495 title "Wide-Area Indoor Position Detection using Fiducial Markers for Wearable PC" @default.
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