Oct 13, 2022 11:42 PM
(This post was last modified: Oct 14, 2022 12:12 AM by Yazata.)
Objects which transform topologically when rotated or seen through a mirror
Or at least seem to. It's all optical illusion where what seems to appear is physically impossible. It's based on the principle that many different 3-D shapes can create the same 2-D image, such as what's seen in a mirror, a video image, or even the image on our retinas.
https://www.youtube-nocookie.com/embed/oWfFco7K9v8
Sugihara's rather elementary discussion of their properties and how to construct them
https://www.tandfonline.com/doi/full/10....hackcv.com
A nontechnical paper in which he presents several different kinds of impossible objects
https://archive.bridgesmathart.org/2020/...20-329.pdf
A paper in which he gets more into the psychology of perceiving these objects
https://catalog.lib.kyushu-u.ac.jp/opac_...4/p016.pdf
Sugihara on impossible motion illusions
https://m-repo.lib.meiji.ac.jp/dspace/bi...9_1001.pdf
Or at least seem to. It's all optical illusion where what seems to appear is physically impossible. It's based on the principle that many different 3-D shapes can create the same 2-D image, such as what's seen in a mirror, a video image, or even the image on our retinas.
Sugihara's rather elementary discussion of their properties and how to construct them
https://www.tandfonline.com/doi/full/10....hackcv.com
A nontechnical paper in which he presents several different kinds of impossible objects
https://archive.bridgesmathart.org/2020/...20-329.pdf
A paper in which he gets more into the psychology of perceiving these objects
https://catalog.lib.kyushu-u.ac.jp/opac_...4/p016.pdf
Sugihara on impossible motion illusions
https://m-repo.lib.meiji.ac.jp/dspace/bi...9_1001.pdf
