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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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Illusory Color Spread from Apparent Motion

Illusory Color Spread from Apparent Motion

Chapter:
(p.344) Chapter 42 Illusory Color Spread from Apparent Motion
Source:
The Oxford Compendium of Visual Illusions
Author(s):

Carol M. Cicerone

Donald D. Hoffman

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199794607.003.0042

Color from motion describes the perception of subjective color that spreads over physically achromatic regions that are seen in apparent motion. Multiple frames are shown in quick succession, each frame composed of a random placement of differently colored dots on an achromatic background. From frame to frame, the locations of all dots are fixed, whereas the color assignments of dots in the test region change. Subjective color can be measured by color matches to and cancellation by real lights, can be seen with chromaticity differences alone in test and surround dots, and is independent of contour formation. In stereoscopic view, the perception of depth, as well as color and form, can be recovered in tandem with seeing motion. This chapter suggests that in natural scenes, mechanisms triggered by motion may reconstruct the depth, color, and form of partially obscured objects so they can be seen as if in plain view.

Keywords:   color from motion, subjective color, apparent motion, depth, perception

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