depth perception - monocular cues

• Size


  -       the larger the image of an object on the retina, the larger it perceived to be

  -       if an object is larger than other objects, it is often perceived as closer
• Linear Perspective


  -       parallel lines appear to converge in the distance

  -       the greater the effect, the farther away an object appears to be
• Texture Gradient


  the texture of a surface appears smoother as distance increases
• Atmospheric Perspective


  -       the farther away objects are, the less distinctly they are seen; smog, dust, haze, in the way
• Overlap


  -       interposition

  -       if one object overlaps another, it is seen as being closer than the one it covers
• Height Cues


  -       aerial perspective

  -       below the horizon, objects lower down in our field of vision are perceived as closer

  -       above the horizon, higher up are seen as closer
• Motion Parallax


  -       when we travel in a vehicle, objects far away appear to move in the same direction as the observer

  -       whereas close objects move in the opposite direction