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Paper Abstract and Keywords
Presentation 2021-06-01 14:15
Improving the Contrast Ratio of Pixel-level Visible Light Communication Projectors Using Blinking Control of Light Sources
Yuki Kakui, Ikuo Kamei, Ken Takaki, Changyo Han, Shogo Fukushima, Takeshi Naemura (UT) MVE2021-2
Abstract (in Japanese) (See Japanese page) 
(in English) PVLC (Pixel-level Visible Light Communication) projector, which can embed invisible information on images, displays images and information in time division. Therefore, it has a problem that the contrast ratio of images deteriorates as the amount of information increases. This paper proposes a bright control method that improves the contrast ratio by both blinking the light sources for the entire screen and switching the DMD for individual pixels in the information projection part.
The improvement of the contrast ratio or the amount of information is shown and the image quality is checked using a PVLC projector.
Keyword (in Japanese) (See Japanese page) 
(in English) Visible Light Communication / Pixel-Level Visible Light Communication / DMD / Light Source Control / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 53, MVE2021-2, pp. 7-12, June 2021.
Paper # MVE2021-2 
Date of Issue 2021-05-25 (MVE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MVE2021-2

Conference Information
Committee MVE ITE-HI VRSJ  
Conference Date 2021-06-01 - 2021-06-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MVE 
Conference Code 2021-06-MVE-HI-VRSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improving the Contrast Ratio of Pixel-level Visible Light Communication Projectors Using Blinking Control of Light Sources 
Sub Title (in English)  
Keyword(1) Visible Light Communication  
Keyword(2) Pixel-Level Visible Light Communication  
Keyword(3) DMD  
Keyword(4) Light Source Control  
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1st Author's Name Yuki Kakui  
1st Author's Affiliation The University of Tokyo (UT)
2nd Author's Name Ikuo Kamei  
2nd Author's Affiliation The University of Tokyo (UT)
3rd Author's Name Ken Takaki  
3rd Author's Affiliation The University of Tokyo (UT)
4th Author's Name Changyo Han  
4th Author's Affiliation The University of Tokyo (UT)
5th Author's Name Shogo Fukushima  
5th Author's Affiliation The University of Tokyo (UT)
6th Author's Name Takeshi Naemura  
6th Author's Affiliation The University of Tokyo (UT)
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Speaker Author-1 
Date Time 2021-06-01 14:15:00 
Presentation Time 25 minutes 
Registration for MVE 
Paper # MVE2021-2 
Volume (vol) vol.121 
Number (no) no.53 
Page pp.7-12 
#Pages 6 
Date of Issue 2021-05-25 (MVE) 

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