Improvements of 3-D image quality in integral display by reducing distortion errors

Masahiro Kawakita; Hisayuki Sasaki; Jun Arai; Fumio Okano; Koya Suehiro; Yasuyuki Haino; Makoto Yoshimura; Masahito Sato

doi:10.1117/12.766070

29 February 2008 Improvements of 3-D image quality in integral display by reducing distortion errors

Masahiro Kawakita, Hisayuki Sasaki, Jun Arai, Fumio Okano, Koya Suehiro, Yasuyuki Haino, Makoto Yoshimura, Masahito Sato

Author Affiliations +

Proceedings Volume 6803, Stereoscopic Displays and Applications XIX; 680316 (2008) https://doi.org/10.1117/12.766070
Event: Electronic Imaging, 2008, San Jose, California, United States

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.

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Masahiro Kawakita, Hisayuki Sasaki, Jun Arai, Fumio Okano, Koya Suehiro, Yasuyuki Haino, Makoto Yoshimura, and Masahito Sato "Improvements of 3-D image quality in integral display by reducing distortion errors", Proc. SPIE 6803, Stereoscopic Displays and Applications XIX, 680316 (29 February 2008); https://doi.org/10.1117/12.766070

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