Jump to ContentJump to Main Navigation
The Oxford Compendium of Visual Illusions$
Users without a subscription are not able to see the full content.

Arthur G. Shapiro and Dejan Todorovic

Print publication date: 2017

Print ISBN-13: 9780199794607

Published to Oxford Scholarship Online: June 2017

DOI: 10.1093/acprof:oso/9780199794607.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 28 September 2021

“Shape From Smear”

“Shape From Smear”

An Illusion of 3D Shape, Made by Finger-Painting With Noise

(p.198) Chapter 17 “Shape From Smear”
The Oxford Compendium of Visual Illusions

Roland W. Fleming

Daniel Holtmann-Rice

Oxford University Press

Of the many mysteries of sensory perception, one of the greatest is surely our ability to see in three dimensions. While the world is 3D, the retinal images are 2D: So how does the brain work out the extra dimension? Under ordinary conditions, viewing the world with two eyes provides rich sources of information for inferring depths. However, we are also very good at working out 3D shape even from single, static photographs of objects. This chapter presents a novel illusion in which 2D patterns appear vividly 3D, revealing specific image information that the brain uses for inferring 3D shape, based on the way texture appears distorted in the image.

Keywords:   perception, brain, illusion, 3D shape, depth, texture

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .