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Proceedings Paper

Shape perception in pictures: eye movements during local surface attitude probing
Author(s): Andrea J. van Doorn; Theo Boersema; Huib de Ridder; Kees Jorens; Arend Harteveld
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Paper Abstract

Perceived local attitudes of the surface of a photographed object are measured by superimposing a small ellipse upon the picture and asking observers to adjust shape and orientation of the ellipse such that it looks as if it is a circle painted on the surface. Previous studies show that observers need global information when judging this fit, although the task is local probing. This study investigates how observers gather global stimulus information, by monitoring eye-scan patterns during task performance. It appears that for the vast majority of the settings all fixations of the subjects fall within a small area around the center of the ellipse. Thus, the global information that observers need to perform the task is almost never acquired during fixations outside a small area around the ellipse. This indicates the importance of peripheral information for shape perception.

Paper Details

Date Published: 30 May 2002
PDF: 9 pages
Proc. SPIE 4662, Human Vision and Electronic Imaging VII, (30 May 2002); doi: 10.1117/12.469553
Show Author Affiliations
Andrea J. van Doorn, Technische Univ. Delft (Netherlands)
Theo Boersema, Technische Univ. Delft (Netherlands)
Huib de Ridder, Technische Univ. Delft (Netherlands)
Kees Jorens, Technische Univ. Delft (Netherlands)
Arend Harteveld, Technische Univ. Delft (Netherlands)

Published in SPIE Proceedings Vol. 4662:
Human Vision and Electronic Imaging VII
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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