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Transpost: 360 deg-Viewable Three-Dimensional Display System

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3 Author(s)
Otsuka, R. ; Adv. Res. Lab., Hitachi, Ltd, Tokyo, Japan ; Hoshino, T. ; Horry, Y.

Three-dimensional (3-D) displays are drawing attention as next-generation devices. Some techniques which can reproduce 3-D images prepared in advance have already been developed. However, technology for the transmission of 3-D moving pictures in real time is yet to be achieved. In this paper, we present a novel method for 360/spl deg/ viewable 3-D displays and the Transpost system in which we implement the method. The basic concept of our system is to project multiple images of the object, taken from different angles, onto a spinning screen. The key to the method is projection of the images onto a directionally reflective screen with a limited viewing angle. The images are reconstructed to give the viewer a 3-D image of the object displayed on the screen. The display system can present images of computer-graphics pictures, live pictures, and movies. Furthermore, the reverse optical process of that in the display system can be used to record images of the subject from multiple directions; the images can then be transmitted to the display in real-time. We have developed prototypes of a 3-D display and a 3-D human-image transmission system. Our preliminary working prototypes demonstrate new possibilities of expression and forms of communication.

Published in:

Proceedings of the IEEE  (Volume:94 ,  Issue: 3 )