講演名 2003/6/2
電磁気式3次元位置センサの簡易誤差補正手法の検討(人工現実感)(マルチメディア・仮想環境基礎)
曽我部 聡, 高橋 裕樹, 中嶋 正之,
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抄録(和)
抄録(英) In the field of VR(Virtual Reality) research and its applications, it is an essential technique to detect positions in three dimensional space. There are several kinds of position tracking systems, for example, mechanical, optical, ultrasonic or electromagnetic system. An electromagnetic tracking system is used more generally than the others in VR systems, because it has high flexibility, can measure data in real time, and is relatively inexpensive. Its accuracy, however, is seriously degraded by magnetic field distortions caused by metal and electronic equipments around the environment. Especially, it is difficult in VR space such a CAVE(CAVE Automatic Virtual Environment) to reduce these material. The error between the actual position and the measured position of a sensor increases in proportion to its distance from a transmitter. In fact, the position errors are greater than 80cm in the area of 3m far from the transmitter. Many calibration methods of position tracking systems are proposed. Most of all methods need to measure actual positions in a workspace. These methods, however, require enormous measurements of positions, for example, it needs more than 1000 points measurements in 3m× 3m × 3m workspace and it takes several hours. Therefore, this paper proposes new calibration method which reduces an effort of measurements of actual positions and obtain sufficient precision of the calibration. The method only reauires to move sensors on a wooden bar with a little restrictions in work space, and it takes less than10 minutes of calibration. Finally, the average error becomes 14.0cm of no calibration to 4.2cm.
キーワード(和)
キーワード(英) ElectroMagnetic Trackers / Calibration VR(Virtual Reality) / VR(Virtual Reality) / CAVE(CAVE Automatic Virtual Environment)
資料番号 MVE2003-9
発行日

研究会情報
研究会 MVE
開催期間 2003/6/2(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
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幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Media Experience and Virtual Environment (MVE)
本文の言語 JPN
タイトル(和) 電磁気式3次元位置センサの簡易誤差補正手法の検討(人工現実感)(マルチメディア・仮想環境基礎)
サブタイトル(和)
タイトル(英) An Investigation of Simple Calibration Method for ElectroMagnetic Trackers(Multimedia and Virtual Environment)
サブタイトル(和)
キーワード(1)(和/英) / ElectroMagnetic Trackers
第 1 著者 氏名(和/英) 曽我部 聡 / Satoshi Sogabe
第 1 著者 所属(和/英) 東京工業大学大学院情報理工学研究科
Graduate School of Information Science & Engineering, Tokyo Institute of Technology
第 2 著者 氏名(和/英) 高橋 裕樹 / Hiroki Takahashi
第 2 著者 所属(和/英) 東京工業大学大学院情報理工学研究科
Graduate School of Information Science & Engineering, Tokyo Institute of Technology
第 3 著者 氏名(和/英) 中嶋 正之 / Masayuki Nakajima
第 3 著者 所属(和/英) 東京工業大学大学院情報理工学研究科
Graduate School of Information Science & Engineering, Tokyo Institute of Technology
発表年月日 2003/6/2
資料番号 MVE2003-9
巻番号(vol) vol.103
号番号(no) 106
ページ範囲 pp.-
ページ数 4
発行日