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Proceedings Paper

Correct 3D but illusory 2D percepts linked to binocularly unpaired regions
Author(s): Sakuichi Ohtsuka; Hiroshi Ono
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Paper Abstract

Two eyes' views together contain more spatial or geometric information than what can be represent faithfully from one vantage point. Just as it is impossible to paint an "authentic" picture on canvas, it is impossible for the visual system to make a "faithful visual" picture. We conducted several psychophysical experiments using stereoscopic displays. Experimental results on judging direction showed that the visual system solves the problem of fitting the two eyes' views, in their entirety, into a single cyclopean view by "displacing" and "compressing", perceptually, a portion of the visual field. The experimental results on judging shape showed that the visual system has a "correcting" mechanism to adjust for the consequences of the directional displacement and compression. We hypothesize that the operation of this "correcting" mechanism is triggered by the pictoral cue of occlusion and that this mechanism is responsible for the Kanizsa and Poggendorff illusions when three-dimensional stimuli are drawn a sheet of paper.

Paper Details

Date Published: 27 November 2002
PDF: 8 pages
Proc. SPIE 4864, Three-Dimensional TV, Video, and Display, (27 November 2002); doi: 10.1117/12.454924
Show Author Affiliations
Sakuichi Ohtsuka, NTT Data Corp. (Japan)
Hiroshi Ono, ATR International Human Information Science Labs. (Japan)
York Univ. (Canada)

Published in SPIE Proceedings Vol. 4864:
Three-Dimensional TV, Video, and Display
Bahram Javidi; Fumio Okano, Editor(s)

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