Visual ambiguity presentation team assignment
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Transcript of Visual ambiguity presentation team assignment
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UNIVERSITY OF PHOENIX
KEVIN CONNELL
KRISTINA NELSON
COY STOKER
Visual Ambiguity Presentation
Visual Ambiguity 1
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Table of Contents
Visual Ambiguity 2
IntroductionTemplate TheoryFeature-matching TheoriesObject-Centered TheoryConclusion
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Introduction
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Visual Ambiguity 3
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Template Theory
Viewer-Centered TheoryRecognition by comparing retinal images to
images on memory templatesWould require large number of templates in
memory
Visual Ambiguity 4
http://cas.bellarmine.edu/tietjen/Ethology/birdbrain.gif
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Feature-matching Theories
Uses parts of patterns such as horizontal, vertical, or slanted lines for recognition
Patterns or images are recognized by comparing their features with ones stored in memory
Features start out basic and become more and more complex until an image or pattern is recognized
Visual Ambiguity 5
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Object-Centered Theories Biederman’s Geon Theory What is a geon? Properties of geons.
1.View Invariance 2.Stability to visual noise 3.Discriminability
Cognition
Object-Centered Theory
Visual Ambiguity 6
http://www.psych.utah.edu/psych3120-classroom/geon.gif
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Conclusion
Visual Ambiguity 7
Conclusion•Introductory pictures•Viewer or object centered theories•Concluding pictures•Solution
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References
Visual Ambiguity 8
Moshe, B. (2003) A cortical mechanism for triggering top-down facilitation in visual object recognition. Journal of Cognitive
Neuroscience, 15(4), 600-609. Retrieved August 2, 2009, from EBSCOHost Database.
Visual perception. (n.d.) Psychology: An International Perspective. Retrieved August 3, 2009, from Psypress Web site:
http://www.psypress.com/pip/resources/slp/topic.asp?chapter=ch07&topic=ch07-sc-08
Willingham, D. T. (2007). Cognition: The thinking animal. New York, NY: Pearson Prentice Hall.