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Learned spatiotemporal signatures are used for object recognition

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Vuong,  QC
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Vuong, Q., & Tarr, M. (2003). Learned spatiotemporal signatures are used for object recognition. Poster presented at 11th Annual Workshop on Object Perception, Attention, and Memory (OPAM 2003), Vancouver, Canada.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-DADF-2
Abstract
The relative motion between observers and objects produces structured changes to the retinal input. To what extent do we use such spatio-temporal signatures for recognition? This question was addressed by testing observer’s recognition of visually-similar or visually-dissimilar objects moving with characteristic motions. An identification task assessed whether observers relied on the object’s spatio-temporal signatures, 3D shapes, 2D views,or combination of the three. We found that altering an object’s motion pattern following learning impaired identification. However, these new motion patterns only changed spatio-temporal signatures from study to test. Thus, observers appear to use these signatures as one cue to object identity.