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17 Cards in this Set
- Front
- Back
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Depth Problem
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The Images in the eyes are 2D projections of the 3D environment.
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What are the Oculomotor Cues for Depth Perception?
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Accommodation and Convergence
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What are the two hypotheses about how the oculomotor cues work?
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1. inflow
2. outflow |
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Oculomotor Cue
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physical things that cue depth
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convergence
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muscles on the sides of the eyes move together at a certain angle. This is done to make a single image- get rid of the double image. ( dipolar- double vision)
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Visual Cues
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Static monocular
- occlusion - elevation - perspective - shading and shadows - blur and visibility - familiarity Binocular Motion |
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Static monocular cues
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Nonmoving cues where only one eye is necessary
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occlusion
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junctions help define the near and far sides of objects
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elevation
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how high in the scene things are
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What junctions play an important role in depth perception from occlusion?
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T intersections
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What does blurring and fading do to an object in a picture?
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Makes it appear further away.
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Nodal Point
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a point at the axis of the lens that is located in a position where a light ray directed at the first point will leave the eye through the second point parallel to its original direction.
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Disparity
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the difference between where light hits a nodal point in both of the eyes
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What does disparity of the eyes measure?
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Depth
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Disparity is good for what objects and bad for what objects?
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Good for close and bad for far away.
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True or false: Objects can be identified by disparity in a single eye.
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True
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What type of both eye neuros wil respond best to zero disparity?
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Neurons that have the same shape receptive field in both eyes?
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