Visual cues and constancies

• What type of depth cue involves using two eyes?

  Binocular depth cues
• What is the term for the difference between the images perceived by each eye?

  Retinal disparity
• What is the term for the inward turning of the eyes to focus on an object?

  Convergence
• What type of depth cue involves using only one eye?

  Monocular depth cues
• What is the monocular depth cue related to the vertical position of objects in a scene?

  Height in plane
• What is the monocular depth cue where closer objects appear larger?

  Relative size
• What is the monocular depth cue where one object blocks another?

  Occlusion
• What is the monocular depth cue where parallel lines converge in the distance?

  Linear perspective
• What allows us to perceive familiar objects as the same size, despite changing retinal image size?

  Size constancy
• How does the brain adjust for distance in size constancy?

  Scales up smaller, distant objects