Motion as a cue for viewpoint invariance
Author(s) / Creator(s)
Troje, Nikolaus F.
Watson, Tamara L.
Johnston, Alan
Hill, Harold C. H.
Abstract / Description
Natural face and head movements were mapped onto a computer rendered threedimensional average of 100 laser-scanned heads in order to isolate movement information from spatial cues and nonrigid movements from rigid head movements (Hill & Johnston, 2001). Experiment 1 investigated whether subjects could recognize, from a rotated view, facial motion that had previously been presented at a full-face view usinga delayed match to sample experimental paradigm. Experiment 2 compared recognition for views that were either between or outside initially presented views. Experiment 3 compared discrimination at full face, threequarters, and profile after learningat each of these views. A significant face inversion effect in Experiments 1 and 2 indicated subjects were usingface-based information rather than more general motion or temporal cues for optimal performance. In each experiment recognition performance only ever declined with a change in viewpoint between sample and test views when rigid motion was present. Nonrigid, face-based motion appears to be encoded in a viewpoint invariant, object-centred manner, whereas rigid head movement is encoded in a more view specific manner.
Keyword(s)
Bewegung Wiedererkennen Experiment movement computer mapping recognition discrimination three-dimensional headsPersistent Identifier
Date of first publication
2005
Publication status
unknown
Review status
unknown
Citation
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Watson.pdfAdobe PDF - 1.52MBMD5: 00d5fa61a019c4e2497f5f870a51ae74
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There are no other versions of this object.
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Author(s) / Creator(s)Troje, Nikolaus F.
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Author(s) / Creator(s)Watson, Tamara L.
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Author(s) / Creator(s)Johnston, Alan
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Author(s) / Creator(s)Hill, Harold C. H.
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PsychArchives acquisition timestamp2022-11-21T17:09:11Z
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Made available on2007-02-09
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Made available on2015-12-01T10:32:05Z
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Made available on2022-11-21T17:09:11Z
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Date of first publication2005
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Abstract / DescriptionNatural face and head movements were mapped onto a computer rendered threedimensional average of 100 laser-scanned heads in order to isolate movement information from spatial cues and nonrigid movements from rigid head movements (Hill & Johnston, 2001). Experiment 1 investigated whether subjects could recognize, from a rotated view, facial motion that had previously been presented at a full-face view usinga delayed match to sample experimental paradigm. Experiment 2 compared recognition for views that were either between or outside initially presented views. Experiment 3 compared discrimination at full face, threequarters, and profile after learningat each of these views. A significant face inversion effect in Experiments 1 and 2 indicated subjects were usingface-based information rather than more general motion or temporal cues for optimal performance. In each experiment recognition performance only ever declined with a change in viewpoint between sample and test views when rigid motion was present. Nonrigid, face-based motion appears to be encoded in a viewpoint invariant, object-centred manner, whereas rigid head movement is encoded in a more view specific manner.en
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Publication statusunknown
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Review statusunknown
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ISSN1350-6285
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Persistent Identifierhttps://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:291-psydok-9015
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Persistent Identifierhttps://hdl.handle.net/20.500.11780/1043
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Persistent Identifierhttps://doi.org/10.23668/psycharchives.10874
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Language of contenteng
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Is part ofVisual Cognition
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Keyword(s)Bewegungde
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Keyword(s)Wiedererkennende
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Keyword(s)Experimentde
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Keyword(s)movementen
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Keyword(s)computer mappingen
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Keyword(s)recognitionen
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Keyword(s)discriminationen
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Keyword(s)three-dimensional headsen
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Dewey Decimal Classification number(s)150
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TitleMotion as a cue for viewpoint invarianceen
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DRO typearticle
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Visible tag(s)PsyDok