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Visual Illusions Rizwan
William Hogarth 1754 - "Whoever makes a DESIGN without the knowledge of PERSPECTIVE will be liable to such Absurdities as are shown in this Frontispiece."     
Theories of Geometrical Illusions ,[object Object],[object Object],[object Object],[object Object]
Eye-Movement Theory ,[object Object],[object Object],[object Object]
Müller-Lyer Lines ,[object Object]
Perspective Cues ,[object Object],[object Object],[object Object]
Müller-Lyer Lines Revisited ,[object Object],[object Object]
Transactionalist Theory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Old Man
Adaptation-Level Theory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Depth Cues on a Flat Surface ,[object Object],[object Object]
Retinal Disparity ,[object Object],[object Object],Source: http://frank.mtsu.edu/~pyskip/splec6.htm
The Acceptance of Perspective ,[object Object],[object Object],[object Object]
Depth Ambiguity ,[object Object]
Wundt’s crosses ,[object Object],[object Object],[object Object]
Sanford’s figure ,[object Object],[object Object]
Of Ambiguous Figures and Depth Reversals ,[object Object],[object Object]
Of Ambiguous Figures & Depth Reversals 2 ,[object Object],[object Object]
The ‘freemish’ crate ,[object Object]
How did he do that??? Any guesses?
Viewing from a single, special perspective ,[object Object],[object Object],[object Object],[object Object]
Misleading depth cues ,[object Object],[object Object]
The Ames Room
Of Giants and Dwarves? ,[object Object],[object Object]
What’s going on here? ,[object Object],[object Object],[object Object],[object Object],[object Object]
So how does it work? ,[object Object],[object Object],[object Object],[object Object]
But what about  the people? ,[object Object],[object Object],[object Object]
Retinal Size != Apparent Size ,[object Object]
But is the Ames Room necessary? ,[object Object],[object Object],[object Object]
The Moon Illusion ,[object Object],[object Object],[object Object],[object Object],[object Object]
Theories ,[object Object],[object Object],[object Object],[object Object],[object Object]
The Mystery Spot ,[object Object],[object Object],[object Object],[object Object]
A new perspective on seeing ,[object Object],[object Object],[object Object],[object Object]

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Visual illusions

  • 2. William Hogarth 1754 - "Whoever makes a DESIGN without the knowledge of PERSPECTIVE will be liable to such Absurdities as are shown in this Frontispiece."     
  • 3.
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  • 7.
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  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
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  • 16.
  • 17.
  • 18.
  • 19. How did he do that??? Any guesses?
  • 20.
  • 21.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
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  • 32.