Document Detail


Structure from stereo and motion.
MedLine Citation:
PMID:  3973765     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Stereopsis and motion parallax are two methods for recovering three-dimensional (3D) shapes. Theoretical analyses of each method show that neither alone can recover rigid 3D shapes correctly unless other information, such as perspective and vertical disparity, is included. The solutions for recovering rigid structure from motion have a reflection ambiguity; the depth scale of the stereoscopic solution will not be known unless the fixation distance is specified in units of interpupil separation. (Hence the configuration will appear distorted.) However, the correct configuration and disposition of a rigid 3D shape can be recovered if stereopsis and motion are integrated, for then a unique solution follows from a set of linear equations. The correct interpretation requires only three points and two stereo views.
Authors:
W Richards
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics and image science     Volume:  2     ISSN:  0740-3232     ISO Abbreviation:  J Opt Soc Am A     Publication Date:  1985 Feb 
Date Detail:
Created Date:  1985-03-22     Completed Date:  1985-03-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8402086     Medline TA:  J Opt Soc Am A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  343-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Form Perception*
Humans
Models, Psychological*
Motion*
Psychophysics
Vision, Ocular*

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


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