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Paper Abstract and Keywords
Presentation 2014-03-04 13:45
An Examination of the Luminance-Difference of the Gradation Providing Better Impressions for Viewers
Michimi Inoue, Takumi Sotome, Mie Sato, Miyoshi Ayama (Utsunomiya Univ.), Naoki Hashimoto (UEC)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we examined a gradation that give a good impression based on impression assessments, and then we researched characteristics of the gradation focused on luminance-difference. Results showed that impression image improved with gradation increase. However, the tendencies are significant between 32 to 128 gradations, and then 128 gradations had luminance-difference of more than the JND. We found that a necessary gradation is 128 when a response curve of display device follows the JND. On the other hand, when that follows the gamma curve of 2.2, necessary gradation is 256.
Keyword (in Japanese) (See Japanese page) 
(in English) High-gradation display / Gradation number / Luminance-difference / Impression assessment / / / /  
Reference Info. ITE Tech. Rep., vol. 38, no. 10, HI2014-32, pp. 17-20, March 2014.
Paper # HI2014-32 
Date of Issue 2014-02-25 (HI) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee HI  
Conference Date 2014-03-04 - 2014-03-05 
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 2014-03-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Examination of the Luminance-Difference of the Gradation Providing Better Impressions for Viewers 
Sub Title (in English)  
Keyword(1) High-gradation display  
Keyword(2) Gradation number  
Keyword(3) Luminance-difference  
Keyword(4) Impression assessment  
1st Author's Name Michimi Inoue  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Takumi Sotome  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Mie Sato  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
4th Author's Name Miyoshi Ayama  
4th Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
5th Author's Name Naoki Hashimoto  
5th Author's Affiliation The University of Electro-Communications (UEC)
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Date Time 2014-03-04 13:45:00 
Presentation Time 25 
Registration for HI 
Paper # ITE-HI2014-32 
Volume (vol) ITE-38 
Number (no) no.10 
Page pp.17-20 
#Pages ITE-4 
Date of Issue ITE-HI-2014-02-25 

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