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  Conditions for viewpoint dependent face recognition

Schyns, P., & Bülthoff, H.(1993). Conditions for viewpoint dependent face recognition (AIM-1432).

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-ED8E-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-ED8F-1
Genre: Report

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Schyns, PG, Author
Bülthoff, HH1, Author              
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1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Abstract: Face recognition stands out as a singular case of object recognition: although most faces are very much alike, people discriminate between many different faces with outstanding efficiency. Even though little is known about the mechanisms of face recognition, viewpoint dependence, a recurrent characteristic of many research on faces, could inform algorithms and representations. Poggio and Vetter‘s symmetry argument [10] predicts that learning only one view of a face may be sufficient for recognition, if this view allows the computation of a symmetric, virtual, view. More specifically, as faces are roughly bilaterally symmetric objects, learning a side-view - which always has a symmetric view - should give rise to better generalization performances than learning the frontal view. It is also predicted that among all new views, a virtual view should be best recognized. We ran two psychophysical experiments to test these predictions. Stimuli were views of 3D models of laser-scanned faces. Only shape was available for recognition; all other face cues - texture, color, hair, etc. - were removed from the stimuli. The first experiment tested whether a particular view of a face was canonical. The second experiment tested which single views of a face give rise to best generalization performances. The results were compatible with the symmetry argument: face recognition from a single view is always better when the learned view allows the computation of a symmetric view.

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 Dates: 1993-08
 Publication Status: Published in print
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 Identifiers: Report Nr.: AIM-1432
BibTex Citekey: 2544
 Degree: -

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