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Proceedings Paper

Proposal of a new method for depth accuracy in a virtual world
Author(s): Shintaro Kawahara; Toshiaki Sugihara; Tsutomu Miyasato; Tatsuhiro Yonekura
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Paper Abstract

Stereoscopic displays, such as HMDs or lenticular screens, have a functional problem that is the disorder of the convergence and the accommodation. This disorder affects the depth accuracy. In this paper, we propose a new practical evaluation method of the depth accuracy in a virtual world, using by the stereoscopic display, and discuss a result of the evaluation. In this method, we focused the disorder of the convergence and the accommodation. To evaluate this disorder, we used HMD with out developed function, called the accommodative compensation. The accommodative compensation can regulate the depth position of the displayed image. In this evaluation, we used a subjective assessment method applying moving stimulus images, and showed stimulus images to subjects that changed the relationship of the convergence and the accommodation, by using the accommodative compensation function of the HMD. We quantitatively evaluated the effects of disorder of the convergence and the accommodation. The main index of the evaluation was the time difference of the ball manipulating actions at the ball game. We assume that such time differences indicate the tolerance of the perception of depth. Results suggest that the disorder may affect the depth accuracy.

Paper Details

Date Published: 23 May 2002
PDF: 9 pages
Proc. SPIE 4660, Stereoscopic Displays and Virtual Reality Systems IX, (23 May 2002); doi: 10.1117/12.468038
Show Author Affiliations
Shintaro Kawahara, Ibaraki Industrial Technology Ctr. (Japan)
Toshiaki Sugihara, ATR Media Integration and Communications Research Labs. (Japan)
Tsutomu Miyasato, ATR Media Integration and Communications Research Labs. (Japan)
Tatsuhiro Yonekura, Ibaraki Univ. (Japan)


Published in SPIE Proceedings Vol. 4660:
Stereoscopic Displays and Virtual Reality Systems IX
Mark T. Bolas; Andrew J. Woods; John O. Merritt; Stephen A. Benton; Mark T. Bolas, Editor(s)

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