Depth cues Flashcards
Depth cue
a source of information from the environment (external cue) or from within the body (internal cue) that aids perception of how far away objects are and therefore depth perception
Monocular depth cue
the use of only one eye to provide information to the brain about depth and distance
Accommadation
in visual perception, a monocular depth cue involving the automatic focusing of the lens in the eye to adjust shape in response to changes in the distance of view from an object
Texture gradient
a visual perception monocular depth cue based on the extent to which fine detail can be perceived in a surface
Height in the visual field
a visual perception monocular depth cue involving a perceptual tendency to visually perceive objects located closer to the horizon as being more distant than objects located further from the horizon
Relative size
a visual perception monocular depth cue involving perceptual tendency to visually perceive the object that produces the largest image on the retina as being closer and the object that produces the smallest image as being further away (when objects are expected to be the same size)
Interposition
a visual perception monocular depth cue based on the principle that an object which partially covers another is closer than the object it covers and the covered object is further away; also called overlap
Linear perspective
a visual perception monocular depth cue based on the apparent convergence of actual or imagined parallel lines as they recede into the distance
Binocular depth cue
the use of both eyes working together in order to provide information to the brain about depth and distance
Convergence
a visual perception binocular depth cue involving the inward turning of the eyes to focus on nearby objects
Retinal disparity
a visual perception binocular depth cue based on the difference (disparity) of the two retinal images
