6. Depth Perception

Beschreibung

Psychology (Intro to Sensation & Perception) Karteikarten am 6. Depth Perception, erstellt von Reeth G am 22/05/2024.
Reeth G
Karteikarten von Reeth G, aktualisiert vor 6 Monate
Reeth G
Erstellt von Reeth G vor 6 Monate
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Zusammenfassung der Ressource

Frage Antworten
what is the strong element associated with depth perceptoin? strong innate element -- for evolutionary survival
what are the 4 depth cues occulomotor pictorial motion-produced binocular disparity
what are occulomotor cues cues that depend on our ability to sense the position of our eyes & tension in eye-muscles
what are pictorial cues cues that can be depicted in a picture - can be monocular
what are motion produced cues cues that depend on movement of observer or of object in environment
what is binocular disparity cues that depend on the fact that slightly different images of a scene are formed o each eye
with occulomotor cues, what is corelated with the distance of the observed object? the shape of the lens & distance of our eyes
what are we likely to experience? convergence as eye muscles cause us to look inwards accommodation as lens bulge to focus on a near object
the closer the object.. the more the convergence and accommodation
how are pictorial cues better to be viewed? monocularly
what are the 8 different cues to pictorial cues? occlusion, relative size, relative height, atmospheric perspective, texture gradient, shading & shadow, familiar size, linear perspective
what does the atmospheric perspective cue say? that the further away something is, there is more light & air particles to look thru = less sharp + more blue
what does linear perspective say lines that are parallel seem to convergence in the seen as they get further away
what does familiar size say if ur familiar with an object & its size, it acts as a cue for how far away it might be with the retinal image
what does relative height say below eye height = highest point is furthest away above eye height = lowest point is further away
what does relative size say the further away an object is, the smaller it gets in retinal image
how does the retinal image size change in relative size cues with distance increase distance = smaller retinal image decrease distance = larger retinal image
what is size constancy when an object remains the same size in reality despite the changing size in retinal image really important for depth perception!
what is emmert's law? objects that generate retinal images of the same size will look different in physical size if they're at different distances (sort of the opposite of the relative size cue kinda)
what are the two parts to the shading & shadow cue? attached shadows -- shadow within object detached shadows -- shadows outside of object
how do we tell the different with these cues? we need to know where the light source is coming from -- often assume its above
what is the texture gradient cue texture becomes smaller, finer & coarse as distance increases -- esp if patterned
what does occlusion say when one object slightly obscures the other, the overlap demonstrates depth
what are the motion-produced cues? motion parallex & deletion + accretion
what does motion parallax say nearby moving objects move rapidly & far object move slowly. either the object is moving or we're moving
what kind of cue is motion parallax & who is it often used by & why? monocular -- animals without binocular disparity to increase visual field birds bob heads, squirrels use orthogonal running
what does the deletion & accretion cue say as an object moves in an environment, deletion of a back object occurs when the front object moves, and accretion is when it covers less of that back object
what is binocular disparity also known as? binocular stereopsis -- two different retinal images due to slight difference between two eyes; constructs a 3rd image
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