What are the monocular cues of depth perception? Explain the role of binocular cues in the perception of depth?
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Answer:
Important monocular cues are relative size and height, interposition, linear and aerial perspective, light and shade, texture gradient and motion parallax. The binocular cues of depth perception are provided by both the eyes in three dimensional spaces. Depth perception is the visual ability to perceive the world in three dimensions (3D) and the distance of an object. Depth sensation is the corresponding term for animals, since although it is known that animals can sense the distance of an object (because of their ability to move accurately, or to respond consistently, according to that distance), it is not known whether they perceive it in the same subjective way that humans do Depth perception arises from a variety of depth cues. These are typically classified into binocular cues that are based on the receipt of sensory information in three dimensions from both eyes and monocular cues that can be represented in just two dimensions and observed with just one eye Binocular cues include stereopsis, eye convergence, disparity, and yielding depth from binocular vision through exploitation of parallax. Monocular cues include size: distant objects subtend smaller visual angles than near objects, grain, size, and motion parallax.