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  A stereo advantage in generalizing over changes in viewpoint on object recognition tasks

Bennett, D., & Vuong, Q. (2006). A stereo advantage in generalizing over changes in viewpoint on object recognition tasks. Perception and Psychophysics, 68(7), 1082-1093. doi:10.3758/BF03193711.

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Bennett, DJ, Author
Vuong, QC1, 2, Author              
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1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Four experiments examined whether generalization to unfamiliar views was better under stereo viewing as opposed to nonstereo viewing across different tasks and stimuli. The first three experiments used a sequential matching task in which observers matched the identity of shaded tube-like objects. Across Experiments 1-3, we manipulated the presentation method of the nonstereo stimuli (eye-patch versus showing the same screen image) and the magnitude of the viewpoint change (30° versus 38°). In Experiment 4, observers identified “easy” and “hard” rotating wireframe objects at the individual level under stereo and nonstereo viewing conditions. We found a stereo advantage for generalizing to unfamiliar views in all experiments. However, in these experiments, performance remained view-dependent even under stereo viewing. These results strongly argue against strictly 2D image-based models of object recognition, at least for the stimuli and recognition tasks used, and they suggest that observers used representations that contained view-specific local depth information.

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 Dates: 2006-10
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 3221
DOI: 10.3758/BF03193711
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Title: Perception and Psychophysics
Source Genre: Journal
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Publ. Info: Austin, Tex., etc. : Psychonomic Society, etc.
Pages: - Volume / Issue: 68 (7) Sequence Number: - Start / End Page: 1082 - 1093 Identifier: ISSN: 0031-5117
CoNE: https://pure.mpg.de/cone/journals/resource/954925432372