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The Oxford Compendium of Visual Illusions$
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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

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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

Color Wagon-Wheel Illusion

Color Wagon-Wheel Illusion

(p.548) Chapter 75 Color Wagon-Wheel Illusion
The Oxford Compendium of Visual Illusions

Arthur G. Shapiro

William Kistler

Oxford University Press

The wagon-wheel illusion is a well-known cinematic effect in which a wheel rotates in one direction but is perceived as rotating in the opposite direction. This effect is created by the limitations of the frame rate at which the motion is sampled. This chapter examines variants of the color wagon-wheel illusion, an effect that arises when one or more elements of the rotating wagon wheel is colored or otherwise distinguished from other elements. In the color wagon-wheel illusion, the wheel is overall perceived as moving counterclockwise, but the colored elements are perceived as moving clockwise. The chapter explores equiluminant versions of the color wagon-wheel effect to show that separable motion directions can be used to tap into different types of motion perception systems.

Keywords:   motion, wagon-wheel illusion, equiluminance, color, illusions

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