Mr. Hiroki Kamoshita Profile

Hiroki Kamoshita

at Nagaoka Univ of Technology

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Proceedings Article | 22 May 2015 Paper

Projection type transparent 3D display using active screen

Hiroki Kamoshita, Tomohiro Yendo

Proceedings Volume 9495, 94951A (2015) https://doi.org/10.1117/12.2177458

KEYWORDS: Mirrors, 3D displays, Projection systems, 3D image processing, Transparency, Image processing, Televisions, Video, Eyewear, Computer simulations

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Equipment to enjoy a 3D image, such as a movie theater, television and so on have been developed many. So 3D video are widely known as a familiar image of technology now. The display representing the 3D image are there such as eyewear, naked-eye, the HMD-type, etc. They has been used for different applications and location. But have not been widely studied for the transparent 3D display. If transparent large 3D display is realized, it is useful to display 3D image overlaid on real scene in some applications such as road sign, shop window, screen in the conference room etc. As a previous study, to produce a transparent 3D display by using a special transparent screen and number of projectors is proposed. However, for smooth motion parallax, many projectors are required. In this paper, we propose a display that has transparency and large display area by time multiplexing projection image in time-division from one or small number of projectors to active screen. The active screen is composed of a number of vertically-long small rotate mirrors. It is possible to realize the stereoscopic viewing by changing the image of the projector in synchronism with the scanning of the beam.3D vision can be realized by light is scanned. Also, the display has transparency, because it is possible to see through the display when the mirror becomes perpendicular to the viewer. We confirmed the validity of the proposed method by using simulation.

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