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Paper Abstract and Keywords
Presentation 2009-03-19 15:00
Integration of movement of edges in concave/convex figures
Kou Takahashi, Masayuki Kikuchi (Tokyo Engineering Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) When we observe moving objects behind some occluders and only motions of local parts are visible, the entire motion cannnot be perceived. This is called "aperture problem ". This problem can be solved by integrating two or more local information (motion integration). Previous studies about motion integration usually used 2D stimuli. Only a few studies used 3D stimuli. Among then, there was the one which investigated the relation between collinear arrengement of moving lines in depth dimension and motion integration, and the relation between figure-ground separation and motion integration, using dynamic random dot stereogram. This study performded psychophysical experiments to clarify the relation between figure-ground separation and motion integration in detail using 2D stimuli expressing concave/convex edges based on the charecteristics of spatiotemporal frequency of 2D pictures for the figure-ground separation, and 3D stimuli by dynamic randomdot stereogram. We obtained the results that when motions of concave edges were perceived, subjects could easily integrate them, on the other hand, when convex edges were presented, subjects could not integrate them well. This result suggests that there is a relation between figure-ground separation and motion integration.
Keyword (in Japanese) (See Japanese page) 
(in English) Motion Integration / Aperture Problem / Binocular Stereopsis / Psychology experiment / Figure-Ground Organization / / /  
Reference Info. ITE Tech. Rep., vol. 33, no. 17, HI2009-84, pp. 65-68, March 2009.
Paper # HI2009-84 
Date of Issue 2009-03-11 (HI) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Committee HI  
Conference Date 2009-03-18 - 2009-03-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HI 
Conference Code 2009-03-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Integration of movement of edges in concave/convex figures 
Sub Title (in English)  
Keyword(1) Motion Integration  
Keyword(2) Aperture Problem  
Keyword(3) Binocular Stereopsis  
Keyword(4) Psychology experiment  
Keyword(5) Figure-Ground Organization  
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1st Author's Name Kou Takahashi  
1st Author's Affiliation Tokyo Engineering University (Tokyo Engineering Univ.)
2nd Author's Name Masayuki Kikuchi  
2nd Author's Affiliation Tokyo Engineering University (Tokyo Engineering Univ.)
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Speaker Author-1 
Date Time 2009-03-19 15:00:00 
Presentation Time 20 minutes 
Registration for HI 
Paper # HI2009-84 
Volume (vol) vol.33 
Number (no) no.17 
Page pp.65-68 
#Pages
Date of Issue 2009-03-11 (HI) 


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