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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 28, Iss. 7 — Jul. 1, 2011
  • pp: 1445–1452

Decoding of depth and motion in ambiguous binocular perception

Ko Sakai, Mitsuharu Ogiya, and Yuzo Hirai  »View Author Affiliations


JOSA A, Vol. 28, Issue 7, pp. 1445-1452 (2011)
http://dx.doi.org/10.1364/JOSAA.28.001445


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Abstract

We have shown previously that random dots with an interocular time delay (ITD), the time difference of the onset of dots between the two eyes, yield both apparent depth and motion, although depth and velocity are covariant and, thus, ITD is inherently ambiguous. The depth of random dots with ITD was proportional to ITD, suggesting that the visual system assumes a constant velocity of the dots and determines depth on the basis of this constant velocity. We performed psychophysical experiments to investigate whether subjects perceive a constant velocity with a variety of ITDs in random dots aligned along a single vertical line that ensures neither apparent motion nor accidental disparity between the dots. The results showed that subjects perceive a constant velocity for a variety of ITDs with simultaneous perception of depth in proportion to ITD, indicating the priority of depth over velocity in ambiguous binocular perception derived from ITD.

© 2011 Optical Society of America

OCIS Codes
(330.1400) Vision, color, and visual optics : Vision - binocular and stereopsis
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5020) Vision, color, and visual optics : Perception psychology

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: November 2, 2010
Revised Manuscript: May 4, 2011
Manuscript Accepted: May 14, 2011
Published: June 20, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Ko Sakai, Mitsuharu Ogiya, and Yuzo Hirai, "Decoding of depth and motion in ambiguous binocular perception," J. Opt. Soc. Am. A 28, 1445-1452 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-7-1445

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