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Lizenz
Aufsatz zugänglich unter
Motion as a cue for viewpoint invariance
URN: urn:nbn:de:bsz:291-psydok-9015
URL: http://psydok.sulb.uni-saarland.de/volltexte/2007/901/
Quelle:
(2005) Visual Cognition
pdf-Format:
Dokument 1.pdf (1.483 KB)
SWD-Schlagwörter:
Bewegung , Wiedererkennen , Experiment
Freie Schlagwörter (Englisch):
movement , computer mapping , recognition , discrimination , three-dimensional heads
APA Klassifikation:
2300
Institut 1:
Keine Einrichtung
Institut 2:
Keine Einrichtung
Institut 3:
Ruhr-Universität Bochum: Fakultät für Psychologie
Institut 4:
Keine Einrichtung
DDC-Sachgruppe:
Psychologie
Dokumentart:
Aufsatz
Sprache:
Englisch
Erstellungsjahr:
2005
Publikationsdatum:
09.02.2007
Kurzfassung auf Englisch:
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.
Lizenz:
Standard-Veröffentlichungsvertrag