Visual cues and constancies

• What are visual cues?

  Features of the environment providing information
• What are visual constancies?

  Seeing objects as the same from different angles
• What are binocular depth cues?

  Depth cues using both eyes
• What is retinal disparity?

  Difference between left and right eye views
• How does retinal disparity help us perceive depth?

  It provides information about depth and distance
• What is convergence in terms of depth perception?

  Eyes become closer together for nearby objects
• What happens to eye muscles when objects are close?

  Muscles work harder to converge the eyes
• How does the brain use convergence information?

  To determine depth and distance of objects
• What are monocular depth cues?

  Depth cues using one eye
• What does height in plane refer to?

  Higher objects appear further away
• How does relative size affect depth perception?

  Smaller objects appear further away
• What is occlusion in depth perception?

  Objects in front appear closer than those behind
• How does linear perspective contribute to depth perception?

  Parallel lines converge to indicate distance
• What are the main types of depth cues?

  • Binocular depth cues (two eyes)
  • Retinal disparity
  • Convergence
  • Monocular depth cues (one eye)
  • Height in plane
  • Relative size
  • Occlusion
  • Linear perspective