Perception of Motion & Depth Perception

Perception of Movement

based on change of position relative to other subjects

Illusions

sensations that give rise to misperceptions

Illusions

apparent movement

Stroboscopic Motion

animations, each frame differs slightly and preceds in rapid succession, giving the illusion of movement

Pictorial Cues

Monocular Cues AKA

Monocular Cues

creates an illusion of depth that can be perceived by one eye

Monocular Cues

includes perspective, relative size, clearness, overlapping, shadows, and texture gradient, cause objects to seem more distant than others

Perspective

monocular cue based on the convergence of parallel lines as they recede into the distance

Clearness

sense more details of nearby objects

Relative Size

distant objects look small and nearer objects look larger

Overlapping

one object infront of another, nearby objects block our view of more distant objects

Shadowing

give info about an object's 3d shape and relationship to source of light

Texture Gradient

closer objects = rougher textures

Motion Parallax

based on perception of nearby objects = rapid in relation to own motion, distant objects = moves with us/slow

Binocular Cues

involve simultaneous perception by both eyes

Perspective, Texture Gradient, Motion Parallax

Monocular Cues < (3)

Retinal Disparity

based on the difference in image cast by an object on retinas

Convergence

inward movement of eyes as they attempt to focus on an object that is drawing nearer

Size Constancy

perceive an object as same size even if size of retinal image changes according to distance

Size Constancy

acquired through visual experiences

Color Constancy

perceive an object as same color even if lighting conditions changed its APPEARANCE

Brightness Constancy

perceive objects to be just as bright even if lighting condition changes its INTENSITY

Shape Constancy

perceive objects as maintaining their shape even though its from different angles

retinal disparity

closer object = greater disparity