| Project/Area Number |
13558035
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Intelligent informatics
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| Research Institution | NARA INSTITUTE OF SCIENCE AND TECHNOLOGY |
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Principal Investigator |
YOKOYA Naokazu NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, Graduate School of Information Science, Professor, 情報科学研究科, 教授 (10252834)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEMURA Haruo Osaka University, Cybermedia Center, Professor, サイバーメディアセンター, 教授 (60263430)
KANBARA Masayuki NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, Graduate School of Information Science, Assistant Professor, 情報科学研究科, 助手 (10346306)
YAMAZAWA Kazumasa NARA INSTITUTE OF SCIENCE AND TECHNOLOGY, Graduate School of Information Science, Associate Professor, 情報科学研究科, 助教授 (40283931)
OKUMA Takashi National Institute of Advanced Science and Technology, Researcher, 知能システム研究部門, 研究員 (90356626)
ARAKI Shoichi Matsushita Electric Industrial Co.,Ltd., Senior Researcher, 先端技術研究所, 主任研究員
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| Project Period (FY) |
2001 – 2003
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| Keywords | Geometric registration / Annotation overlay / Augmented reality / Mixed reality / Computer vision / Wearable computer |
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| Research Abstract |
We have obtained the following research results in this project.
1.Geometric Registration of Real and Virtual Worlds
One of the most important problems in constructing augmented reality environments is to align the real and virtual coordinate systems. This geometric registration problem, which results in estimating the position and orientation of user's view point in the real world, was first addressed and a number of techniques have been investigated ; for example, (1)Vision-based registration by tracking markers and natural features in user's view, (2)Integration of inertial sensor output with vision-based tracking for robust registration, (3)Position identification using positioning infrastructures such IrDA devices and RFID tags, and (4)Integration of GPS and inertial sensors in outdoor environments.
2.Annotation Overlay on Real World Objects
We have developed a two-step information presentation scheme for overlaying annotations on real world objects. First object labels are overlaid o
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n objects in user's view, and detailed information is then presented with respect to a certain object on which user's eyes are fixed. Moreover we have developed a networked *ase system for updating annotation information in real-time. The proposed system provides users with annotation information from a server via a wireless network so that users do not need to hold it in their wearable computers and information providers can easily update the database with a web browser. Using this framework, multiple users can send and share location-dependent information in the real world.
3.Development of Prototype Systems
A number of prototypes of wearabla augmented reality system have been developed. These systems are implemented as video see-through augmented reality systems, in which annotations are first composed with real world images captured at user's view point and then the composite images are presented to users via a head-mounted display or a small clip-on display attached to glasses. The feasibility of the proposed systems is tested with experiments in indoor and outdoor environments. Some of the systems are tuned to specified potential applications such as a fireman supporting system in fire fighting and a tour guide system in sightseeing. Less
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