Visual cues & consistencies

• What are depth cues?

  Information from the environment that helps humans understand depth.
• How do depth cues contribute to human perception?

  They help humans perceive the world as 3-D rather than flat.
• What is a visual cue?

  An environmental stimulus providing information about spatial dimensions.
• What does visual constancy allow humans to do?

  Understand that objects remain the same size despite their distance.
• How would a cow appear to a viewer standing far away in a field?

  Smaller than cows standing near the fence.
• What is the role of monocular depth cues?

  They allow distance and depth judgment using only one eye.
• What does the term 'mono' refer to in monocular depth cues?

  One eye.
• What is linear perspective in monocular depth cues?

  It occurs when parallel lines appear to converge in the distance.
• How does relative size function as a monocular depth cue?

  The further away an object is, the smaller it appears in the visual field.
• What does height in plane indicate in monocular depth cues?

  Objects higher in the visual field appear further away.
• What is occlusion in the context of monocular depth cues?

  When one object is obscured by another, it appears further away.
• What are binocular depth cues?

  Depth cues that involve the use of both eyes.
• How do binocular depth cues create a 3-D image?

  Each eye takes in a slightly different view processed by the brain.
• What is retinal disparity?

  The slight difference in views taken in by each eye.
• How does convergence relate to depth perception?

  It involves the eyes coming together to take in a view.
• Why do animals like birds have poor depth perception?

  They can only use monocular depth cues due to eye placement.
• How do monocular and binocular depth cues differ in their function?

  Monocular cues use one eye, while binocular cues use both eyes.