著者

佐藤 清秀 穴吹 まほろ 山本 裕之 田村 秀行

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.7, no.2, pp.129-137, 2002

被引用文献数

9

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In this paper, a registration method for outdoor wearable mixed reality (MR) systems is described. Our approach is based on using a high precision gyroscope, which can measure 3DOF angle of head direction accurately, but with some drift error. We solved the drift problem with a vision-based drift compensation algorithm, which tracks natural features in the outdoor environment as landmarks from images captured by a camera on an HMD. This paper first describes the detail of the vision-based drift compensation method. Then, a calibration method for the orientation sensor is proposed. Finally, using results from an actual wearable MR system, a comparison of registration error with and without vision-based drift compensation demonstrates the feasibility of the proposed method.