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PERCEPTION & CONGNTION (Object Recognition Theories
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PERCEPTION & CONGNTION
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Perception and Awareness
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Perception is an illusion
- because we use shortcuts/heuristics
- perception is an active and constructive process
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Ecological Approach
- JJ Gibson
- Passive Bottom-up processing
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Object Recognition Theories
Gibson's View
- texture gradient
- Topological Breakage
- Scatter Reflection
Recognition by Components
- combination of feature theory & prototype theory
- 36 basic 3D shapes for any object
- Geons:
- Can be identified when viewed from diff angles
- have distinct properties
Noise Resistant
- we can recognize objects in noie if we can see the geons.
--> how well we can do this depends on visibility of goons.
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Object Recognition Theories
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Emotions affect Visual perception:
- fear = skate & hill example