Document Detail

Interpolation across surface discontinuities in structure from motion.
MedLine Citation:
PMID:  8058449     Owner:  NLM     Status:  MEDLINE    
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).
A Saidpour; M L Braunstein; D D Hoffman
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Perception & psychophysics     Volume:  55     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1994 Jun 
Date Detail:
Created Date:  1994-09-12     Completed Date:  1994-09-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  611-22     Citation Subset:  C    
Department of Cognitive Sciences, School of Social Sciences, University of California, Irvine 92717.
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MeSH Terms
Depth Perception*
Discrimination Learning
Motion Perception*
Optical Illusions*
Perceptual Closure
Size Perception

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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