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  2. Visual cliff - Wikipedia

    en.wikipedia.org/wiki/Visual_cliff

    The visual cliff is an apparatus created by psychologists Eleanor J. Gibson and Richard D. Walk at Cornell University to investigate depth perception in human and other animal species. It consists of a sturdy surface that is flat but has the appearance of a several-foot drop part-way across.

  3. Depth perception - Wikipedia

    en.wikipedia.org/wiki/Depth_perception

    Depth perception is the ability to perceive distance to objects in the world using the visual system and visual perception. It is a major factor in perceiving the world in three dimensions . Depth sensation is the corresponding term for non-human animals, since although it is known that they can sense the distance of an object, it is not known ...

  4. Random dot stereogram - Wikipedia

    en.wikipedia.org/wiki/Random_dot_stereogram

    The discovery of the random dot stereogram was intriguing not just for its ability to create depth sensations in printed images but also for its implications in cognitive science and the study of perception. The random dot stereogram provided insight on how stereo vision is processed by the human brain. According to Ralph Siegel, Julesz had ...

  5. Stereoscopic acuity - Wikipedia

    en.wikipedia.org/wiki/Stereoscopic_acuity

    A good procedure is a chart, analogous to the familiar Snellen visual acuity chart, in which one letter in each row differs in depth (front or behind) sequentially increasing in difficulty. For children the fly test is ideal: the image of a fly is transilluminated by polarized light; wearing polarizing glasses the wing appears at a different ...

  6. Binocular neurons - Wikipedia

    en.wikipedia.org/wiki/Binocular_neurons

    Binocular neurons create depth perception through computation of relative and absolute disparity created by differences in the distance between the left and right eyes. Binocular neurons in the dorsal and ventral pathways combine to create depth perception, however, the two pathways perform differ in the type of stereo computation they perform. [7]

  7. Stereopsis - Wikipedia

    en.wikipedia.org/wiki/Stereopsis

    The perception of depth in such cases is also referred to as "stereoscopic depth". [1] The perception of depth and three-dimensional structure is, however, possible with information visible from one eye alone, such as differences in object size and motion parallax (differences in the image of an object over time with observer movement), [2 ...

  8. Binocular disparity - Wikipedia

    en.wikipedia.org/wiki/Binocular_disparity

    Binocular disparity refers to the difference in image location of an object seen by the left and right eyes, resulting from the eyes' horizontal separation ().The mind uses binocular disparity to extract depth information from the two-dimensional retinal images in stereopsis.

  9. Flicker fusion threshold - Wikipedia

    en.wikipedia.org/wiki/Flicker_fusion_threshold

    It is a concept studied in vision science, more specifically in the psychophysics of visual perception. A traditional term for "flicker fusion" is "persistence of vision", but this has also been used to describe positive afterimages or motion blur. Although flicker can be detected for many waveforms representing time-variant fluctuations of ...