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Akiyoshi’s Illusion Pages

ritsumei.ac.jp

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Re: Akiyoshi’s Illusion Pages

#41

Post by d-lisp »

davchana wrote: post #19
rqtwteye wrote: post #14

Earlier quoted context omitted.

I could imagine that it will change the way you perceive things. There are experiments where people got goggles that switched the left and right eyes and people adjusted after a few days.

Or even simple glasses which turn the view upside down. Human eyes were able to adjust itself (or the image) correct way after few hours.

I had a copy of some Merleau-Ponty work in which this experiment was commented, IIRC the experimenter did really think his brain was damaged when the world appeared upside down to him without the glasses.

Re: Akiyoshi’s Illusion Pages

#42

Post by catbird »

nojs wrote: post #17
tempaway75751 wrote: post #2

The most mind blowing optical illusion I've seen are Kokichi Sugihara's Ambiguous Objects: https://www.youtube.com/watch?v=KtA6u1HIqbg

A similar one that I like, and you can easily make yourself: https://www.moillusions.com/dragon-illusion/

That was a fun little project. It looks even better in person!

Re: Akiyoshi’s Illusion Pages

#43

Post by magic_hamster »

susam wrote: post #40

One of Akiyoshi Kitaoka's recent work that I found absolutely stunning is the following illusion where a ring of one colour appears to be either in front of or behind two rings of another colour: https://twitter.com/AkiyoshiKitaoka/status/16812686184854568... https://nitter.net/AkiyoshiKitaoka/status/168126861848545689... To my perception, the blue ring appears to float above the red rings. It feels a bit like an aut…

That's a very cool illusion. First time I see it. I wonder if the color patterns on the different rings have something to do with it.

Re: Akiyoshi’s Illusion Pages

#44

Post by dang »

Related:

Akiyoshi's Illusion Pages - https://news.ycombinator.com/item?id=25785081 - Jan 2021 (17 comments)

Akiyoshi's Illusion Pages - https://news.ycombinator.com/item?id=13793715 - March 2017 (32 comments)

Akiyoshi's illusion pages - https://news.ycombinator.com/item?id=5697783 - May 2013 (15 comments)

Re: Akiyoshi’s Illusion Pages

#46

Post by qwertywert_ »

Solvency wrote: post #23
grilledchickenw wrote: post #21

The second black hole one "Approaching black hole: yesterday" is stunning. I cannot believe it's a still image. http://www.psy.ritsumei.ac.jp/~akitaoka/saishin69e.html

Am I alone in not understanding this black hole one... it's a sequence of three obviously distinct still images in which the black center is larger than the previous image. Meanwhile, each image on its own is offering no kind of perceptive illusion to me...

Open the image and F11 to full screen then just stare at the center.

Re: Akiyoshi’s Illusion Pages

#47

Post by epiccoleman »

susam wrote: post #40

One of Akiyoshi Kitaoka's recent work that I found absolutely stunning is the following illusion where a ring of one colour appears to be either in front of or behind two rings of another colour: https://twitter.com/AkiyoshiKitaoka/status/16812686184854568... https://nitter.net/AkiyoshiKitaoka/status/168126861848545689... To my perception, the blue ring appears to float above the red rings. It feels a bit like an aut…

That one, for me, is sorta like the ballerina thing, in that with a small mental effort I can make it switch between the two states. But honestly my first glance at it, they look largely "flush" - not a super strong 3d effect in either direction.

Re: Akiyoshi’s Illusion Pages

#48

Post by Tao3300 »

susam wrote: post #40

One of Akiyoshi Kitaoka's recent work that I found absolutely stunning is the following illusion where a ring of one colour appears to be either in front of or behind two rings of another colour: https://twitter.com/AkiyoshiKitaoka/status/16812686184854568... https://nitter.net/AkiyoshiKitaoka/status/168126861848545689... To my perception, the blue ring appears to float above the red rings. It feels a bit like an aut…

I see the red rings in the front, but if I close one eye, they look flat. That was confusing, but the paper explains it nicely.

Re: Akiyoshi’s Illusion Pages

#49

Post by Proziam »

epiccoleman wrote: post #47
susam wrote: post #40

One of Akiyoshi Kitaoka's recent work that I found absolutely stunning is the following illusion where a ring of one colour appears to be either in front of or behind two rings of another colour: https://twitter.com/AkiyoshiKitaoka/status/16812686184854568... https://nitter.net/AkiyoshiKitaoka/status/168126861848545689... To my perception, the blue ring appears to float above the red rings. It feels a bit like an aut…

That one, for me, is sorta like the ballerina thing, in that with a small mental effort I can make it switch between the two states. But honestly my first glance at it, they look largely "flush" - not a super strong 3d effect in either direction.

Even with effort I couldn't make them not appear 'flush' and I'm beginning to question my sanity

Re: Akiyoshi’s Illusion Pages

#50

Post by GolfPopper »

aimor wrote: post #8

This one almost hurts, forget the approaching black hole I get dazzling speckles of white light. : http://www.psy.ritsumei.ac.jp/~akitaoka/Plaid-tunnel02-040-b...

Oof. Yes. I don't get the speckles, but the middle portions of the tunnel "shudder" like looking a something slightly out of focus at extremely high power through a telescope, and it feels like I'm about to get a migraine.
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