| Interpolation across surface discontinuities in structure from motion. | |
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MedLine Citation:
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PMID: 8058449 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Interpolation across orientation discontinuities in simulated three-dimensional (3-D) surfaces was studied in three experiments with the use of structure-from-motion (SFM) displays. The displays depicted dots on two slanted planes with a region devoid of dots (a gap) between them. If extended through the gap at constant slope, the planes would meet at a dihedral edge. Subjects were required to place an SFM probe dot, located within the gap, on the perceived surface. Probe dot placements indicated that subjects perceived a smooth surface connecting the planes rather than a surface with a discontinuity. Probe dot placements varied with slope of the planes, density of the dots, and gap size, but not with orientation (horizontal or vertical) of the dihedral edge or of the axis of rotation. Smoothing was consistent with models of 2-D interpolation proposed by Ullman (1976) and Kellman and Shipley (1991) and with a model of 3-D interpolation proposed by Grimson (1981). |
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Authors:
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A Saidpour; M L Braunstein; D D Hoffman |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Perception & psychophysics Volume: 55 ISSN: 0031-5117 ISO Abbreviation: Percept Psychophys Publication Date: 1994 Jun |
Date Detail:
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Created Date: 1994-09-12 Completed Date: 1994-09-12 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0200445 Medline TA: Percept Psychophys Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 611-22 Citation Subset: C |
Affiliation:
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Department of Cognitive Sciences, School of Social Sciences, University of California, Irvine 92717. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention Depth Perception* Discrimination Learning Female Humans Male Motion Perception* Optical Illusions* Orientation* Perceptual Closure Psychophysics Size Perception |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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