Shape perception in pictures: eye movements during local surface attitude probing

Andrea J. van Doorn; Theo Boersema; Huib de Ridder; Kees Jorens; Arend Harteveld

doi:10.1117/12.469553

30 May 2002 Shape perception in pictures: eye movements during local surface attitude probing

Andrea J. van Doorn, Theo Boersema, Huib de Ridder, Kees Jorens, Arend Harteveld

Proceedings Volume 4662, Human Vision and Electronic Imaging VII; (2002) https://doi.org/10.1117/12.469553
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Andrea J. van Doorn, Theo Boersema, Huib de Ridder, Kees Jorens, and Arend Harteveld "Shape perception in pictures: eye movements during local surface attitude probing", Proc. SPIE 4662, Human Vision and Electronic Imaging VII, (30 May 2002); https://doi.org/10.1117/12.469553

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