University of Calgary
UofC Navigation

Monocular Cues

If you close one eye briefly as you walk along, you will see that your depth perception seems less effective than with both eyes open. But even with one eye closed you could still perceive depth. Monocular depth cues account for this ability. Accommodation, one of the oculmotor cues that we discussed earlier is an example of a monocular depth cue. Two additional types of monocular depth information are provided by pictorial cues and movement-based cues. We'll deal with pictorial cues first.

Pictorial cues

Pictorial cues are a type of monocular depth information that can be represented in a two-dimensional surface such as a photo or painting. We’ll discuss eight pictorial cues:

  • Occlusion
  • Relative Height
  • Cast Shadows
  • Relative Size
  • Familiar Size
  • Atmospheric Perspective
  • Linear Perspective
  • Texture Gradient

Click on the picture below to proceed to a discussion of each of these pictorial cues.

Back | Home | Next