Seeing depth

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  • Seeing depth
    • There are two types of depth cues: monocular and binocular.
      • 'Mono' means one. Monocular depth cues are clues to distance that only need one eye. There are 5 monocular depth cues.
        • Superimposition - a partly hidden object must be further away than the object covering it.
        • Relative size - smaller objects are perceived as further away than larger ones.
        • Texture gradient - the area with a detailed pattern is perceived to be nearer than the one with less detail.
        • Linear perspective - parallel lines appear to converge (meet) in the distance.
        • Height in the plane - objects closer to the horizon are perceived to be more distant than ones below or above the horizon.
    • Binocular depth cues - 'bi' means two (e.g. binoculars). They are clues to distance that need both eyes. Sometimes two eyes are important for seeing depth.
    • Depth cues are visual 'clues' that we use to understand depth or distance.


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