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Proceedings Paper

Improvements of 3-D image quality in integral display by reducing distortion errors
Author(s): Masahiro Kawakita; Hisayuki Sasaki; Jun Arai; Fumio Okano; Koya Suehiro; Yasuyuki Haino; Makoto Yoshimura; Masahito Sato
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Paper Abstract

An integral three-dimensional (3-D) system based on the principle of integral photography can display natural 3-D images. We studied ways of improving the resolution and viewing angle of 3-D images by using extremely highresolution (EHR) video in an integral 3-D video system. One of the problems with the EHR projection-type integral 3-D system is that positional errors appear between the elemental image and the elemental lens when there is geometric distortion in the projected image. We analyzed the relationships between the geometric distortion in the elemental images caused by the projection lens and the spatial distortion of the reconstructed 3-D image. As a result, we clarified that 3-D images reconstructed far from the lens array were greatly affected by the distortion of the elemental images, and that the 3-D images were significantly distorted in the depth direction at the corners of the displayed images. Moreover, we developed a video signal processor that electrically compensated the distortion in the elemental images for an EHR projection-type integral 3-D system. Therefore, the distortion in the displayed 3-D image was removed, and the viewing angle of the 3-D image was expanded to nearly double that obtained with the previous prototype system.

Paper Details

Date Published: 29 February 2008
PDF: 11 pages
Proc. SPIE 6803, Stereoscopic Displays and Applications XIX, 680316 (29 February 2008); doi: 10.1117/12.766070
Show Author Affiliations
Masahiro Kawakita, NHK Science and Technical Research Labs. (Japan)
Hisayuki Sasaki, NHK Science and Technical Research Labs. (Japan)
Jun Arai, NHK Science and Technical Research Labs. (Japan)
Fumio Okano, NHK Science and Technical Research Labs. (Japan)
Koya Suehiro, Victor Co. of Japan, Ltd. (Japan)
Yasuyuki Haino, Victor Co. of Japan, Ltd. (Japan)
Makoto Yoshimura, Victor Co. of Japan, Ltd. (Japan)
Masahito Sato, Victor Co. of Japan, Ltd. (Japan)

Published in SPIE Proceedings Vol. 6803:
Stereoscopic Displays and Applications XIX
Andrew J. Woods; Nicolas S. Holliman; John O. Merritt, Editor(s)

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