Document Detail


Canonical views in object representation and recognition.
MedLine Citation:
PMID:  7975339     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Human performance in the recognition of 3-D objects, as measured by response times and error rates, frequently depends on the orientation of the object with respect to the observer. We investigated the dependence of response time (RT) and error rate (ER) on stimulus orientation for a class of random wire-like objects. First, we found no evidence for universally valid canonical views: the best view according to one subject's data was often hardly recognized by other subjects. Second, a subject by subject analysis showed that the RT/ER scores were not linearly dependent on the shortest angular distance in 3D to the best view, as predicted by the mental rotation theories of recognition. Rather, the performance was significantly correlated with an image-plane feature by feature deformation distance between the presented view and the best (shortest-RT and lowest-ER) view. Our results suggest that measurement of image-plane similarity to a few (subject-specific) feature patterns is a better model than mental rotation for the mechanism used by the human visual system to recognize objects across changes in their 3-D orientation.
Authors:
F Cutzu; S Edelman
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  34     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1994 Nov 
Date Detail:
Created Date:  1994-12-29     Completed Date:  1994-12-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  3037-56     Citation Subset:  IM    
Affiliation:
Department of Applied Mathematics and Computer Science, Weizmann Institute of Science, Rehovot, Israel.
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MeSH Terms
Descriptor/Qualifier:
Computer Graphics
False Negative Reactions
False Positive Reactions
Humans
Memory / physiology
Models, Psychological*
Pattern Recognition, Visual / physiology*
Psychophysics
Reaction Time / physiology
Reproducibility of Results

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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