NDLI: Real-time composition of stereo images for video see-through augmented reality

Content Provider	IEEE Xplore Digital Library
Author	Kanbara, M. Okuma, T. Takemura, H. Yokoya, N.
Copyright Year	1999
Description	Author affiliation: Graduate Sch. of Inf. Sci., Nara Inst. of Sci. & Technol., Japan (Kanbara, M.)
Abstract	This paper describes a method of stereo image composition for video see-through augmented reality. In order to implement an augmented reality system, we must acquire the position and orientation of the user's viewpoint to display the composed image maintaining correct registration of real and virtual worlds. All the procedures must be done in real-time. We have built a prototype augmented reality system that adopts the combination of a vision-based tracking technique and a video see-through head mounted display (HMD). Display-timing is synchronized between the real and virtual environments, so that an alignment error is reduced. The system calculates camera parameters from three markers among which physical relationships are unknown in image sequences captured by a pair of stereo cameras mounted on the HMD. In addition, the user's hands are regarded as real-world objects that may occlude virtual objects; the system estimates the depth of hands in images and generates a composed image maintaining consistent occlusions between the hands and virtual objects.
Starting Page	213
Ending Page	219
File Size	855045
Page Count	7
File Format	PDF
ISBN	0769502539
DOI	10.1109/MMCS.1999.779195
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-07
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Augmented reality Virtual environment Cameras Image sequences Magnetic field measurement Optical receivers Mirrors Information science Prototypes Head
Content Type	Text
Resource Type	Article

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