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Course Overvie

Introduction to Visual Perception

Color and Light

Perspective and Depth

Beauty, Symmetry and the Human Face

The Art of Illusion

Try to see the Op-Art and Escher exhibits atthe SJMA (opens Jan. 28)

course website: orange.stanford.edu(click on the link toArt and Perception)


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Human Depth Perception Binocular cues to depth

vergence

stereopsis Monocular cues to depth

accomodation size

occlusion, height convergence of parallel lines atmospheric effects

Perspective in Art

Hockne -Falco thesis


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!ergence" Infinite Distance


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!ergence" #ediu$ Distance


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!ergence" C%ose Distance


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Our to &yes see Different!ies of a Scene


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Our Brain 'ses Stereo Disparityto Co$pute ()ear* Depth


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+a%%paper I%%usion

http://wikipedia.org/wiki/Autostereogram


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+a%%paper I%%usion



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Autostereogra$(Christopher ,y%er*



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#agic &ye

http://www.magiceye.com/


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#agic &ye",he -idden I$age

http://www.magiceye.com/


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Human Depth Perception Binocular cues to depth

vergence stereopsis

Monocular cues to depth accomodation size occlusion, height

convergence of parallel lines atmospheric effects

Perspective in Art

Hockney-Falco thesis

perspective


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Si.e Constancy


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Si.e Constancy


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Occ%usion and -eight


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Occ%usion and -eight


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Convergence of Para%%e% Lines


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Si.e/ -eight/ Occ%usion/ Convergence


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Perspective


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Perspective


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Ancient &gypt

http://en.wikipedia.org/wiki/Art_of_ancient_Egypt

Pharaoh Akhenaten (~1340BC)

depicted as bigger than the rest

of his royal family because he

was of greater importance.

R 0 d C AD


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Ro$e/ 0nd Century AD:Centra% and Para%%e% Convergence

Pompeiian mural of the pageant of Orestes (courtesy CW Tyler)


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Renaissance

Claude Lorrain, 1648


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Renaissance

Jan Vermeer, Street

in Delft (1657)


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-oc1ny"2a%co Conecture

Startling photo-realism emerged inRenaissance Art

But- odd errors in some pieces hint at the

use of optical tricks camera lucida

concave mirror

b d d if ( *


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-usband and +ife (Lotto/ 4563*

b d d if i%


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-usband and +ife Detai%


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A$o%finiPortrait (van

&yc1/ 4636*


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A$o%fini Portrait #irror

S t & (C i 4784*


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Supper at &$$aus (Caravaggio/ 4784*


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Stor19s Refutation

Engineering the necessary optics would behard

Lighting is a problem

The supposed photo-realistic details aren't

correct in ways not predicted by optics

Other (known) tricks are much more likely

to have been employed


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er$an Perspective #achine

Albrecht Drer (1471-1528), Underweysung der Messung Mit

dem Zirckel un Richtscheyt, in Linien, Nuremberg: 1525.


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Another Perspective ,ric1

Albrecht Drer (1471-1528), Underweysung der Messung Mit

dem Zirckel un Richtscheyt, in Linien, Nuremberg: 1525.


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A Si$p%e Perspective Device

Recreation of a Renaissaince perspective device,

from a Virginia Museum of Fine Arts 2005 exhibit.


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Cl d L i L d i h A D l (1672)

Documents

03 Perspective Depth 070124