PMID: 16524011Mar 10, 2006Paper

From interpretation to segmentation

Psychonomic Bulletin & Review
Arno Koning, R van Lier

Abstract

In visual perception, part segmentation of an object is considered to be guided by image-based properties, such as occurrences of deep concavities in the outer contour. However, object-based properties can also provide information regarding segmentation. In this study, outer contours and interpretations of object configurations were manipulated to examine differences between image-based and object-based segmentation in a visual search task. We found that locating a two-dimensional object configuration with deep concavities in the outer contour depends on the type of outer contour of the surrounding distractors. In addition, locating a three-dimensional object configuration was harder when it was surrounded by object-based-disconnected distractors, as compared with object-based-connected distractors, regardless of image-based connections in these distractors. We conclude that segmentation based on the outer contours of a target facilitates its localization. However, when three-dimensional information is available, segmentation strongly depends on object-based properties, rather than on image-based properties.

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Citations

Jul 28, 2009·Attention, Perception & Psychophysics·Francesco Martino, Luigi Burigana
Nov 14, 2006·Acta Psychologica·Arno Koning, Rob van Lier
Mar 6, 2009·Experimental Psychology·Arno Koning, Johan Wagemans
Aug 25, 2009·Vision Research·Peter A van der Helm, Matthias S Treder

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