15 May 1997 Hologramlike video images by 45-view stereoscopic display
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Abstract
Hologram-like video images have been demonstrated using a stereoscopic display developed by a member of the 3-D project at TAO. Images are made of 45-view stereoscopic images at resolution of 400 by 400 pixels -- each pixel has 45 horizontal parallaxes -- and refreshed at 30 Hz. Stimulation of conventional stereoscopic video display causes a physiological problem, called accommodation-vergence conflict, though it provides multi-view images. Holography is a usual approach to avoid this conflict but it has great difficulty of providing video images. A new stereoscopic approach is described in this paper, called super multi-view (SMV) region. SMV region means the following condition; there are more than two parallax-images passing through a pupil of viewer's each eye. At the SMV region, if viewer accommodates one's focus to the spatial position of 3-D image -- perceived by binocular disparity -- then the parallax-images passed through a pupil are focused to the same position on a retina. Therefore, there is an ability of fusing accommodation and vergence due to the effect of monocular and binocular parallax. To satisfy the SMV condition, the display must provide numerous view images with narrow interval of parallax. It is difficult to satisfy the SMV condition using conventional displaying technique, but the FLA concept (proposed at Practical Holography X, EI '96) realized providing 45-view images with 0.5 degree interval. The design of this display is also described in this paper. SMV technique is just a quasi-holography because reproduced images have natural stimulus for monocular and binocular vision.
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Yoshihiro Kajiki, Yoshihiro Kajiki, Hiroshi Yoshikawa, Hiroshi Yoshikawa, Toshio Honda, Toshio Honda, } "Hologramlike video images by 45-view stereoscopic display", Proc. SPIE 3012, Stereoscopic Displays and Virtual Reality Systems IV, (15 May 1997); doi: 10.1117/12.274452; https://doi.org/10.1117/12.274452
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