JUDGMENTS OF THE INCLINATION AND SLANT OF SURFACES IN STEREOSCOPIC DISPLAY SYSTEMS

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Authors
  1. Howard, I.P.
  2. Kaneko, H.
  3. Pierce, B.
  4. Allison, R.S.
  5. Zacher, J.E.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Institute for Space and Terrestrial Science, North York ONT (CAN)
Abstract
Seven experiments explore the relationships between binocular disparities and depth perception. Experiments 1 & 2 show that the perception of the inclination of a surface about a horizontal axis relies on deformation disparity only for displays more than about 10 degrees in diameter and in the absence of stimuli with other disparities. These experiments also show that an inclined surface affects the perceived inclination of a superimposed or adjacent surface in a manner which depends on the type of disparity in each surface. Experiments 3, 4, and 5 test the hypothesis that perceived slant about a vertical axis depends on the difference between horizontal-size disparity and vertical-size disparity. The results confirm the prediction that overall mangification of one image (equal horizontal and vertical mangification) would produce no impression of slant and that vertical magnification of one image would produce an impression of slant in the opposite direction to that produced by horizontal magnification of one image. The experimenters measured the area over which vertical size disparities are averaged and showed that a slanted surface affects the perceived slant of a superimposed or adjacent surface in a manner which depends on the type of disparity in each surface. TRUNCATED
Keywords
Virtual reality;Binocular disparities;Depth perception;Stereoscopic display systems;Stereopsis;Stereoscopic vision
Report Number
DCIEM-97-CR-32 — Contract Report
Date of publication
18 Jan 1997
Number of Pages
222
DSTKIM No
98-00563
CANDIS No
506954
Format(s):
Hardcopy;Document Image stored on Optical Disk

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