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Paper Abstract and Keywords
Presentation 2023-05-31 11:00
Luminance-Based Data Representation for Improving Contrast in Pixel-level Visible Light Communication
Kazuki Usui, Yuki Kakui, Changyo Han, Takeshi Naemura (UTokyo)
Abstract (in Japanese) (See Japanese page) 
(in English) Pixel-level Visible Light Communication (PVLC) is a system that embeds data into each individual pixel of a projected image, enabling machines to retrieve the hidden information. Since the data bit strings are converted to blinking pixels for time-division transmission, the contrast of the projected image deteriorates due to the reduction in the expressible luminance range. In this study, we propose a method to extend the luminance range by inverting the bits based on the brightness of the image pixels. The efficacy of this method is confirmed through both simulations and experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) Visible Light Communication / Pixel-level Visible Light Communication / Contrast Ratio / / / / /  
Reference Info. ITE Tech. Rep.
Paper #  
Date of Issue  
ISSN Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-MVE HI VRSJ HI-SIG-DeMO IPSJ-HCI IPSJ-EC  
Conference Date 2023-05-31 - 2023-06-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IEICE-MVE 
Conference Code 2023-05-MVE-HCI-EC-VRSJ-HI-SIG-DeMO 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Luminance-Based Data Representation for Improving Contrast in Pixel-level Visible Light Communication 
Sub Title (in English)  
Keyword(1) Visible Light Communication  
Keyword(2) Pixel-level Visible Light Communication  
Keyword(3) Contrast Ratio  
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1st Author's Name Kazuki Usui  
1st Author's Affiliation The University of Tokyo (UTokyo)
2nd Author's Name Yuki Kakui  
2nd Author's Affiliation The University of Tokyo (UTokyo)
3rd Author's Name Changyo Han  
3rd Author's Affiliation The University of Tokyo (UTokyo)
4th Author's Name Takeshi Naemura  
4th Author's Affiliation The University of Tokyo (UTokyo)
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Speaker Author-1 
Date Time 2023-05-31 11:00:00 
Presentation Time 20 minutes 
Registration for IEICE-MVE 
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