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Paper Abstract and Keywords
Presentation 2011-12-10 14:00
Region extraction from an object image contributing to translucency perception with Classification Image technique
Yuki Ono, Takehiro Nagai, Michiteru Kitazaki, Kouwa Koida, Shigeki Nakauchi (TUT)
Abstract (in Japanese) (See Japanese page) 
(in English) We aimed to extract object image regions contributing to translucency perception using the Classification Image method with CG images whose translucency was controlled by the strength of subsurface scattering (SSS) in order to examine image statistics related to translucency on 3D objects. The stimulus was the composition of two CG images with different SSS strengths according to a random spatial pattern. The observer simultaneously viewed the two stimuli that were created based on different composition patterns, and responded which stimulus yielded stronger translucency perception. The composition patterns of all trials were classified into two classes based on the observers' responses, and were averaged in each class. Then, we derived CIs as the differences between the averaged patterns between the two classes. The CIs showed that the observer judged the object translucency not on the whole image but on certain regions in the object images, indicating that these regions were more strongly related to translucency perception. In addition, the observer judged translucency based not on regions with clear shading luminance edges, but on regions that have little luminance variations. These results suggested that translucency perception do not strongly depend on local luminance contrast information.
Keyword (in Japanese) (See Japanese page) 
(in English) translucency / material perception / image statistic / Classification Image / psychophysics / / /  
Reference Info. ITE Tech. Rep., vol. 35, no. 51, HI2011-90, pp. 71-74, Dec. 2011.
Paper # HI2011-90 
Date of Issue 2011-12-02 (HI) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee HI  
Conference Date 2011-12-09 - 2011-12-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HI 
Conference Code 2011-12-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Region extraction from an object image contributing to translucency perception with Classification Image technique 
Sub Title (in English)  
Keyword(1) translucency  
Keyword(2) material perception  
Keyword(3) image statistic  
Keyword(4) Classification Image  
Keyword(5) psychophysics  
1st Author's Name Yuki Ono  
1st Author's Affiliation Toyohashi University of Technology (TUT)
2nd Author's Name Takehiro Nagai  
2nd Author's Affiliation Toyohashi University of Technology (TUT)
3rd Author's Name Michiteru Kitazaki  
3rd Author's Affiliation Toyohashi University of Technology (TUT)
4th Author's Name Kouwa Koida  
4th Author's Affiliation Toyohashi University of Technology (TUT)
5th Author's Name Shigeki Nakauchi  
5th Author's Affiliation Toyohashi University of Technology (TUT)
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Date Time 2011-12-10 14:00:00 
Presentation Time 25 
Registration for HI 
Paper # ITE-HI2011-90 
Volume (vol) ITE-35 
Number (no) no.51 
Page pp.71-74 
#Pages ITE-4 
Date of Issue ITE-HI-2011-12-02 

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