stereopsis

upright|thumb|Stereopsis caused by alternating stereo images. If the two images were viewed side by side in a stereoscope, the same 3D image would be perceived, but without motion. In the science of visual perception, stereopsis is the sensation that objects in space extend into depth, and that objects have different distances from each other. This sensation is much stronger than the suggestion of depth that is created by two-dimensional perspective.

Wikidata facts

Subclass of: visual perception
Image: Stereovision.gif

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topic's main category: Category:3D imaging
Commons category: Stereopsis (vision)

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~19 min read

Encyclopedic overview

26 sections

Contents

Summary of research
Binocular disparity
Horizontal disparity
Horopter
Crossed disparity
Parallel disparity
Wheatstone's proof
Depth as a function of disparity
Fine stereopsis
Coarse stereopsis
No stereopsis
Conditions for binocular depth vision
Equal edges
Color and brightness
Random dot stereogram
Simultaneity
Eye movement
Checking for correct fixation
Correspondence problem
Binocular ghost images
Neurophysiological mechanisms
Benefits
See also
References
Bibliography
External links

In humans, at least two mechanisms produce the sensation of stereopsis: binocular depth vision and (monocular) motion vision. In binocular depth vision, the sensation arises from processing differences in retinal images resulting from the two eyes looking from different, but similar, directions (binocular disparity). In motion vision, the sensation arises from processing motion information when the observer moves (e.g. optical flow, parallax). The sensation of stereopsis is similar in both cases.

Excerpted from Wikipedia’s “stereopsis” article, available under the CC BY-SA 4.0 licence.