Correct 3D but illusory 2D percepts linked to binocularly unpaired regions

Sakuichi Ohtsuka; Hiroshi Ono

doi:10.1117/12.454924

27 November 2002 Correct 3-D but illusory 2-D percepts linked to binocularly unpaired regions

Sakuichi Ohtsuka, Hiroshi Ono

Proceedings Volume 4864, Three-Dimensional TV, Video, and Display; (2002) https://doi.org/10.1117/12.454924
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

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.

Citation Download Citation

Sakuichi Ohtsuka and Hiroshi Ono "Correct 3-D but illusory 2-D percepts linked to binocularly unpaired regions", Proc. SPIE 4864, Three-Dimensional TV, Video, and Display, (27 November 2002); https://doi.org/10.1117/12.454924

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