Wednesday, November 2, 2016

depth perception

Binocular cues- visual information taken in by two eyes that enable us a sense of depth perception, or stereopsis. Includes stereopsis, eye convergence, disparity, and yielding depth from binocular vision through exploitation of parallax.

Retinal disparity-  the space between the eyes that allows binocular vision to create depth perception.
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Convergence- refers to the fact that the closer an object, the more inward our eyes need to turn in order to focus
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For example, this may be obvious but this can be seen with binoculars. Which is probably where it got the name.
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Monocular cues-  any depth cue that can be processed by using one eye alone. Includes size: distant objects subtend smaller visual angles than near objects, grain, size, and motion parallax.

Relative size-  is a perceptual clue which allows you to determine how close objects are to an object of known size.
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Relative motion- is the calculation of the motion of an object with regard to some other moving object.
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Relative height- is a concept used in visual and artistic perspective where distant objects are seen or portrayed as being smaller and higher in relation to items that are closer. This-Man-And-This-Boy-Are-Of-Equal-Height-But-Association-O.jpg

Relative clarity- light from distant objects passes through more atmosphere therefore they are perceived as hazy and farther away than sharp, clear objects.
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Interposition- occurs in instances where one object overlaps the other, which causes us to perceive depth.
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Texture gradient- is the distortion in size which closer objects have compared to objects farther away.
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Linear perspective-  is a depth cue that is related to both relative size and the next depth cue, texture gradient.
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For example, like a telescope you only look through with one eye and perceive the depth or distance it is away from you.
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