Recognizing and segmenting objects in clutter

When viewing a cluttered scene, observers may not be able to segment whole objects prior to recognition. Instead, they may segment and recognize these objects in a piecemeal way. Here we test whether observers can use the appearance of one object part to predict the location and appearance of other...

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Bibliographic Details
Published in:Vision research (Oxford) 2004-02, Vol.44 (4), p.385-396
Main Authors: Bravo, Mary J, Farid, Hany
Format: Article
Language:English
Subjects:
Biological and medical sciences
Discrimination (Psychology) - physiology
Fundamental and applied biological sciences. Psychology
Humans
Object recognition
Object segmentation
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychophysics
Recognition (Psychology)
Vision
Visual Perception - physiology
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Summary:When viewing a cluttered scene, observers may not be able to segment whole objects prior to recognition. Instead, they may segment and recognize these objects in a piecemeal way. Here we test whether observers can use the appearance of one object part to predict the location and appearance of other object parts. During several training sessions, observers studied an object against a blank background. They then viewed this object against a background of clutter that camouflaged some parts of the object while leaving other parts salient. The observer’s task was to find the camouflaged part. We varied the symmetry of the salient part with the expectation that as this symmetry decreased, the information about the camouflaged part’s location and appearance would increase and this would facilitate search. Our results suggest that observers can use the salient part to predict the location, but not the appearance, of the camouflaged part.
ISSN:0042-6989
1878-5646
DOI:10.1016/j.visres.2003.09.031