stereopsis
Sign in to saveupright|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.
Article
26 sectionsContents
- 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
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.
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.