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Proceedings Paper

3D display using motion parallax for long-depth expression
Author(s): Kazutake Uehira; Masahiro Suzuki
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Paper Abstract

We describe a 3-D display that can express differences between depths at extended distances of over tens of meters using an optical system consisting of a compact LCD, convex lens, and beam splitter for car-navigation applications. It uses motion parallax to perceive depth because binocular parallax does not work at long distances. In motion parallax, when an observer is moving toward an object, the rate at which the size of the image is expanded on his or her retina over time depends on the depth of the object. Therefore, the perceived depth of the image is expected to be controlled by changing the rate at which its size is expanded, irrespective of its real depth. The results of a subjective test using a moving car in which observers viewed an expanding test pattern seen ahead through its windshield demonstrated that the perceived depth could be changed by changing the rate at which the test pattern was expanded and this agreed well with the theoretically expected depth over 30 km/h or at 40 m depth. Consequently, we demonstrated that our 3-D display could express differences between depths at extended distances to meet the requirements for car-navigation applications.

Paper Details

Date Published: 29 February 2008
PDF: 8 pages
Proc. SPIE 6803, Stereoscopic Displays and Applications XIX, 68031O (29 February 2008); doi: 10.1117/12.765671
Show Author Affiliations
Kazutake Uehira, Kanagawa Institute of Technology (Japan)
Masahiro Suzuki, Kanagawa Institute of Technology (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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