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Paper Abstract and Keywords
Presentation 2010-02-15 13:00
Subjective evaluation on degradation of image quality due to limited dynamic rage using a high-dynamic-range projector
Yuichi Kusakabe, Masaru Kanazawa, Yuji Nojiri (NHK), Yasuyuki Haino, Masato Furuya, Makoto Yoshimura (JK-holdings) ITS2009-41 IE2009-135
Abstract (in Japanese) (See Japanese page) 
(in English) We are investigating display technologies for a Super Hi-Vision system. We have already developed a high-dynamic-range projector that features dual modulation of light, which has 7680×4320 pixels and extremely high dynamic range of about 1.1-million to 1. We conducted a subjective evaluation to examine the degradation of image quality due to the limited dynamic range of a display by using the high-dynamic-range projector. The results indicate that the dynamic range of at least 1000:1 is necessary for displaying natural images and the dynamic range
of about 30000:1 is necessary for displaying special images which have low average picture levels when images are displayed in a large screen.
Keyword (in Japanese) (See Japanese page) 
(in English) Super Hi-Vision / High dynamic range / Dual modulation / Projector / Image quality / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 414(ITS), 415(IE), ITS2009-41, IE2009-135, pp. 23-28, Feb. 2010.
Paper #  
Date of Issue 2010-02-08 (ITS, IE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 ITS2009-41 IE2009-135

Conference Information
Conference Date 2010-02-15 - 2010-02-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Graduate School of Information and Technology, Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ITE-HI 
Conference Code 2010-02-AIT-IE-HI-ME-ITS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Subjective evaluation on degradation of image quality due to limited dynamic rage using a high-dynamic-range projector 
Sub Title (in English)  
Keyword(1) Super Hi-Vision  
Keyword(2) High dynamic range  
Keyword(3) Dual modulation  
Keyword(4) Projector  
Keyword(5) Image quality  
1st Author's Name Yuichi Kusakabe  
1st Author's Affiliation NHK Science & Technology Research Laboratories (NHK)
2nd Author's Name Masaru Kanazawa  
2nd Author's Affiliation NHK Science & Technology Research Laboratories (NHK)
3rd Author's Name Yuji Nojiri  
3rd Author's Affiliation NHK Science & Technology Research Laboratories (NHK)
4th Author's Name Yasuyuki Haino  
4th Author's Affiliation JVC KENWOOD Holdings, Inc. (JK-holdings)
5th Author's Name Masato Furuya  
5th Author's Affiliation JVC KENWOOD Holdings, Inc. (JK-holdings)
6th Author's Name Makoto Yoshimura  
6th Author's Affiliation JVC KENWOOD Holdings, Inc. (JK-holdings)
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Date Time 2010-02-15 13:00:00 
Presentation Time 25 
Registration for ITE-HI 
Paper # IEICE-ITS2009-41,IEICE-IE2009-135 
Volume (vol) IEICE-109 
Number (no) no.414(ITS), no.415(IE) 
Page pp.23-28 
#Pages IEICE-6 
Date of Issue IEICE-ITS-2010-02-08,IEICE-IE-2010-02-08 

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