How on earth do those Magic Eye illusions work? In this video, we'll learn how humans see in 3D to get to the bottom of it. We'll learn about methods of depth perception, an algorithm for making autostereograms, and a physical model of binocular vision.

Become a Patreon member:   / physicsforthebirds  

Intro: 0:00
Depth perception: 2:02
DIY autostereogram: 5:34
Jell-O model of vision: 8:44

Thank you to Caleb Birtwistle for captioning!

Magic Eye: https://www.magiceye.com/
Bird motion parallax: http://wexler.free.fr/library/files/k...
Chameleons: https://link.springer.com/article/10....
Random Dot Stereogram: https://archive.org/details/bstj39-5-...
Autostereogram algorithm: https://link.springer.com/article/10....
Best book: Bela Julesz, Foundations of Cyclopeon Vision