The Perception of Depth : Binocular Depth Cues

• Vergence
  
• Binocular Disparity : The depth cue that arises as a result of fact that the two eyes are in different locations and is the measure of the differences in position a region of the world falls on the two eyes. This is the depth cue.
  • Stereopsis
  • The Horopter : The region in space where objects will have their images fall on corresponding locations in the two eyes.
  • Types of Disparity :
    • Crossed : in front of the horopter
    • Uncrossed : behind the horopter
  • Panum's Fusional Area
    • The area around the horopter where disparity is sufficiently small that we combine the two images into a single percept. This is the region were we get full depth information from binocular disparity
  • Binocular Rivalry/Suppression
    • Suppression : the seeing of images from only one eye
    • Rivalry : when suppression is not possible and the images from the two eyes alternate in varied fashion.

 

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