Perception of Spatial Features with Stereoscopic Displays.
Final rept. 1 Sep 79-30 Sep 81,
SRI INTERNATIONAL MENLO PARK CA
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This report summarizes a research program that investigated characteristics of three-dimensional displays, the effects of these characteristics on form, depth and motion-in-depth perception of human observers, and the interaction between display and observer variables. Two levels of measurement were used in this investigation subjective measures consisting of observer responses, and objective measures consisting of observer eye movements. Two major experimental techniques were used. These were the selectively stabilized image technique, in which part of the stimulus image was stabilized on the observers retina and a motion-in-depth technique that allowed us to measure changes in an observers perception of three dimensional stimuli. The major findings of this study are 1 the human stereo mechanisms responsible for the perception of depth and of motion-in-depth are sensitive to different aspects of the retinal images produced by three-dimensional displays than is the form perception mechanism 2 it is possible to drive the human stereo mechanism with retinal images that do not drive the form perception mechanism 3 observer variables such as ocular dominance and familiarity with three-dimensional displays interact with the three-dimensional display parameters image luminance, image contrast, and interocular contrast, but appear not to influence the perception of motion-in-depth in three-dimensional displays during binocular image misregistration. Author
- Anatomy and Physiology