Abstract:
:Visual images are ambiguous. Any image, or collection of images, is consistent with an infinite number of possible scenes in the world. Yet we are generally unaware of this ambiguity. During ordinary perception we are generally aware of only one, or perhaps a few of these possibilities. Human vision evidently exploits certain constraints--assumptions about the world and images formed of it--in order to generate its perceptions. One constraint that has been widely studied by researchers in human and machine vision is the generic-viewpoint assumption. We show that this assumption can help to explain the widely discussed fact that outlines of blobs are ineffective inducers of illusory contours. We also present a number of novel effects and report an experiment suggesting that the generic-viewpoint assumption strongly influences illusory-contour perception.
journal_name
Perceptionjournal_title
Perceptionauthors
Albert MK,Hoffman DDdoi
10.1068/p3016keywords:
subject
Has Abstractpub_date
2000-01-01 00:00:00pages
303-12issue
3eissn
0301-0066issn
1468-4233journal_volume
29pub_type
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