Graphics Reference
In-Depth Information
Psychological depth cues
• Image size: This is a useful hint but not sufficient to determine size or depth of
objects.
• Linear perspective: This is the decrease in the apparent size of
an object with increasing distance.
• Aerial perspective: This refers to the hazy and bluish appearance of distant
objects.
• Shading suggests that objects farther from the source of light are darker.
• Shadowing of an object on others provides clues about position and size.
• Occlusion: of objects provides a clue about their relative location.
• Texture gradient provides clues regarding distance and relative location.
• Brightness of an object suggests that it is closer than dimmer objects.
Stereoscopic video capturing system mainly exploits the binocular disparity cue which
helps human visual system to perceive depth.
