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How are Three-Deminsional Objects Represented in the Brain?

Author(s)
Buelthoff, Heinrich H.; Edelman, Shimon Y.; Tarr, Michael J.
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Abstract
We discuss a variety of object recognition experiments in which human subjects were presented with realistically rendered images of computer-generated three-dimensional objects, with tight control over stimulus shape, surface properties, illumination, and viewpoint, as well as subjects' prior exposure to the stimulus objects. In all experiments recognition performance was: (1) consistently viewpoint dependent; (2) only partially aided by binocular stereo and other depth information, (3) specific to viewpoints that were familiar; (4) systematically disrupted by rotation in depth more than by deforming the two-dimensional images of the stimuli. These results are consistent with recently advanced computational theories of recognition based on view interpolation.
Date issued
1994-04-01
URI
http://hdl.handle.net/1721.1/7204
Other identifiers
AIM-1479
CBCL-096
Series/Report no.
AIM-1479CBCL-096
Keywords
object recognition, image-based recognition, objectsrepresentation, feature recognition, memory-based models, humanspsychophysics

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