Knower_Of_Stuff,_Picker_Of_Nits comments on Mundane Magic - Less Wrong

102 Post author: Eliezer_Yudkowsky 31 October 2008 04:00PM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (94)

Sort By: Old

You are viewing a single comment's thread.

Comment author: Knower_Of_Stuff,_Picker_Of_Nits 01 November 2008 05:36:02AM 3 points [-]

Perceptual psychologists have found that binocular vision has mostly second- and third-order effects. For example, it's necessary (but, as my own sad experience attests, not sufficient) for finding hidden pictures in magic eye images.

We get most of our ability to reconstruct 3D scenes from perceptual cues like relative motion and texture gradients. This takes enough mathematical mojo -- real-time 2D Fourier analysis for the latter, mapping between projective 2-space and euclidean 3-space for the former -- that they probably belong on The List in their own right...