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Proceedings Paper

Psychophysical estimation of 3D virtual depth of united, synthesized, and mixed-type stereograms by means of simultaneous observation
Author(s): Masayuki Iizuka; Yoshio Ookuma; Yoshio Nakashima; Mamoru Takamatsu
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Paper Abstract

Recently, many types of computer-generated stereograms (CGSs), i.e. various works of art produced by using computer are published for hobby and entertainment. It is said that activation of brain, improvement of visual eye sight, decrease of mental stress, effect of healing, etc. are expected when properly appreciating a kind of CGS as the stereoscopic view. There is a lot of information on the internet web site concerning all aspects of stereogram history, science, social organization, various types of stereograms, and free software for generating CGS. Generally, the CGS is classified into nine types: (1) stereo pair type, (2) anaglyph type, (3) repeated pattern type, (4) embedded type, (5) random dot stereogram (RDS), (6) single image stereogram (SIS), (7) united stereogram, (8) synthesized stereogram, and (9) mixed or multiple type stereogram. Each stereogram has advantages and disadvantages when viewing directly the stereogram with two eyes by training with a little patience. In this study, the characteristics of united, synthesized and mixed type stereograms, the role and composition of depth map image (DMI) called hidden image or picture, and the effect of irregular shift of texture pattern image called wall paper are discussed from the viewpoint of psychophysical estimation of 3D virtual depth and visual quality of virtual image by means of simultaneous observation in the case of the parallel viewing method.

Paper Details

Date Published: 5 March 2007
PDF: 12 pages
Proc. SPIE 6490, Stereoscopic Displays and Virtual Reality Systems XIV, 64901L (5 March 2007); doi: 10.1117/12.702606
Show Author Affiliations
Masayuki Iizuka, Tokyo Polytechnic Univ. (Japan)
Yoshio Ookuma, Tokyo Polytechnic Univ. (Japan)
Yoshio Nakashima, Univ. of Toyama (Japan)
Mamoru Takamatsu, Univ. of Toyama (Japan)


Published in SPIE Proceedings Vol. 6490:
Stereoscopic Displays and Virtual Reality Systems XIV
Andrew J. Woods; Mark T. Bolas; Ian E. McDowall; Neil A. Dodgson; John O. Merritt; Nicolas S. Holliman, Editor(s)

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