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Paper Abstract and Keywords
Presentation 2013-03-05 15:00
Symmetry in natural image contour -- exploring cortical representation of shape by symmetry --
Ken Kurematsu (U Tsukuba)
Abstract (in Japanese) (See Japanese page) 
(in English) Symmetry is a significant factor for deriving the direction of figure. Although symmetry is common among both biological shapes and artificial objects, and known as a Gestalt factor, few studies have quantified its nature and analyzed the function quantitatively. We focus on symmetry in contours of natural images, and establish a geometrical index that describes the degree of symmetry (DoS) inherent in arbitrary contour. To examine whether DoS matches with the perception of symmetry, we carried out psychophysical experiments. The results showed a good agreement between the perception of symmetry and DoS where the participants showed confidence/consistency in the perception, indicating that DoS reflect the perception of symmetry and that perception of symmetry depends surely on the geometrical degree of symmetry.
Keyword (in Japanese) (See Japanese page) 
(in English) Symmetry / Gestalt Factor / Visual System / Psychophysical Experience / Natural Image / / /  
Reference Info. ITE Tech. Rep., vol. 37, no. 12, HI2013-44, pp. 13-16, March 2013.
Paper # HI2013-44 
Date of Issue 2013-02-26 (HI, 3DIT) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Committee HI 3DMT  
Conference Date 2013-03-05 - 2013-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo University of Agriculture and Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Audio-Visual Technology, Human Interface, etc. 
Paper Information
Registration To HI 
Conference Code 2013-03-HI-3DIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Symmetry in natural image contour 
Sub Title (in English) exploring cortical representation of shape by symmetry 
Keyword(1) Symmetry  
Keyword(2) Gestalt Factor  
Keyword(3) Visual System  
Keyword(4) Psychophysical Experience  
Keyword(5) Natural Image  
1st Author's Name Ken Kurematsu  
1st Author's Affiliation University of Tsukuba (U Tsukuba)
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Speaker Author-1 
Date Time 2013-03-05 15:00:00 
Presentation Time 25 minutes 
Registration for HI 
Paper # HI2013-44, 3DIT2013-12 
Volume (vol) vol.37 
Number (no) no.12 
Page pp.13-16 
Date of Issue 2013-02-26 (HI, 3DIT) 

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