Illusion of Face 8

since December 19, 2010



"Longitudinal Wollaston illusion using combined faces between Hepburn and Monroe"

In the image of Audrey Hepburn (the leftmost one), she looks at us. If the eyes and brows of the image are copied and pasted into the image of Marilyn Monroe (the rightmost one), the combined face appears to gaze upward (the second one from the left). On the other hand, in the image of Marilyn Monroe (the rightmost one), she looks at us with a looking-down face. If the eyes and brows of the image are copied and pasted into the image of Audrey Hepburn (the leftmost one), the combined face appears to gaze downward (the second one from the right). These composite pictures are shown in Figure 4 of a 'face book' entitled "I want to obtain a loved face: the rules" written by Sayako UEDA in 2011.

Produced by Sayako Ueda 2011

上田彩子 (2011) 「恋顔」になりたい ~愛される顔にはルールがある~ 講談社 ISBN978-4-06-217064-2

She is the first author of the paper to study the wobbling face illusion.

Ueda, S., Kitaoka, A., and Suga, T. (2011). Wobbling appearance of a face induced by doubled parts. Perception, 40, 751-756. new!

Produced by Akiyoshi Kiaoka 2011 (August 31)



"Right-looking face"

(Each inset appears to move)

Copyright Akiyoshi Kitaoka 2011 (August 2)



"Left-looking face"

Although the three squares are the same as those in "Right-looking face", the orientation of the face appears to be different.

Copyright Akiyoshi Kitaoka 2011 (August 2)


"Mirror-reversal-induced eye direction illusion"

(For Akiyoshi) The person in the upper image appears to gaze toward us, but its mirror image appears to see rightward for her. For some observers, the person in the upper image appears to gaze leftward for her, while its mirror image appears to look at us.

Copyright Akiyoshi Kitaoka 2010 (April 2)



Poser 7 Ben Casual

"Nose length underestimation effect"

The nose in the upside-down face appears to be shorter than the upright original.

Copyright Akiyoshi Kitaoka 2010 (April 1)


Poser 6 Kate


Poser 7 James Casual


Poser 7 James Casual

Copyright Akiyoshi Kitaoka 2010 (April 4)



Poser 7 Simon G2

"Face flattening effect"

A face appears to be relatively flat onto a frontparallel plane when it is inverted. This is an idea proposed by Jasmina Stevanov on April 1, 2011.

Copyright Akiyoshi Kitaoka 2010 (April 1)

There are two effects. One is that the upside-down face appears to tilt or bow lesser than the upright one. The other is that the upside-down face appears to be slimmer than the upright one*.

*The fat face thin illusion was proposed by Dr. Peter Thompson in the 6th Annual Best Illusion of the Year Contest in 2010 and Akiyoshi's pilot research page.


"Face flattening effect with the hollow face illusion"

A hollow face appears to be relatively flat onto a frontparallel plane when it is inverted. This is an idea proposed by Jasmina Stevanov on April 1, 2011.

Copyright Akiyoshi Kitaoka 2010 (April 1)



Poser 7 Sidney G2


Poser 7 Simon G2


Poser 7 Near_me

"Upside-down face overestimation illusion: a profile"

The lower face appears to be larger than the upper one though they are identical in size.

Copyright Akiyoshi Kitaoka 2010 (March 31)


Poser 7 Near_me




cf.


Poser 7 Simon G2

I only feel slight overestimation of the upside-down head appearance from the back...


Poser 7 Simon G2


Poser 7 Near_me



Poser 7 Near_me

"Upside-down face overestimation illusion: a 3D model"

The lower face appears to be larger than the upper one though they are identical in size.

Copyright Akiyoshi Kitaoka 2010 (March 28)

Upside-down face overestimation illusion


Poser 7 Near_me


Poser 7 Ben Casual


Poser 8 Ryan Casual


Poser 8 Diego


Poser 6 Jessie




cf.


Poser 7 dog

No or weak illusion in a dog face?


Poser 7 dog


Poser 7 frog

No or weak illusion in a frog face?


"Mirror-reversal-induced eye direction illusion"

The person in the upper image appears to gaze toward us, but its mirror image appears to see rightward for her.

Copyright Akiyoshi Kitaoka 2010 (April 2)

"Inversion-induced eye direction illusion"

The person in the upper image appears to gaze toward us, but its inverted image appears to see leftward.

Copyright Akiyoshi Kitaoka 2010 (April 2)


"Inter-eyes interval shrinkage illusion"

The interval between eyes appears to contract when part of hair hangs down.

Modified by Akiyoshi Kitaoka 2011 (March 25)

Thanks to Hiroko sensei




cf.

Delboeuf illusion, underestimation of the outer ring

The outer ring of the left image appears to be smaller than the right ring, though they are the same size.




Kanizsa's Amodal shrinkage

The left black square appears to be smaller than the right one, though they are the same size.




Naito's gravity-lens illusion

The four dots forms a parallelogram, but each appears to shift its position toward its adjacent circle.



Poser 7 Near_me


Poser 6 James Casual


Poser 7 Simon G2 Casual

"Size illusion of oblique faces"

The right face appears to be larger than the left one, though they are the same size.

Copyright Akiyoshi Kitaoka 2011 (March 26)

I would like to attribute this effect to the Leaning Tower illusion. <April 1, 2011>


Poser 7 crocodile

"Size illusion of oblique faces"

The left face appears to be larger than the right one, though they are the same size. For crocodile, the size of face appears to be estimated using the side view while the front view seems to be adopted for the judgment of the size of human faces.

Copyright Akiyoshi Kitaoka 2011 (March 26)


Poser 7 Near_me

"Size illusion of oblique faces: an elevation version"

The lower face appears to be larger than the upper one, though they are the same size.

Copyright Akiyoshi Kitaoka 2011 (March 26)

I would like to attribute this effect to the Leaning Tower illusion. <April 1, 2011>


Poser 7 Near_me

"Size illusion of oblique faces: an elevation version 2"

The upper face appears to be larger than the lower one, though they are the same size. Or the lower head appears to tilt backward larger than does the upper one.

Copyright Akiyoshi Kitaoka 2011 (March 26)



"MoMonana LiLisasa"

The face appears to be unstable.

Modified by Akiyoshi Kitaoka 2010 (December 19)

Needless to say, Mona Lisa is the most famous portrait in the world, which was painted by Leonardo da Vinci, Italy.


Illusion of face 7

Illusion of face 6

Illusion of face 5

Illusion of face 4

Illusion of face 3

Illusion of face 2

Illusion of face


Akiyoshi's illusion pages