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Paper Abstract and Keywords
Presentation 2013-05-17 13:30
Subjective Assessment of Super Close Viewing and its Application for the Coding
Kenji Sugiyama, Naoya Sagara, Koji Nakamura, Syou Furuta (Seikei Univ.) IMQ2013-1
Abstract (in Japanese) (See Japanese page) 
(in English) Very high resolution video system such as 4k (4096x2160) enables super close view that distance is almost same as picture height. However, very short distance causes significant different view in a picture. Therefore, uniform processing for a picture may not be always best. At first, we calculate the actual view size of a pixel depends on the pixel position in the case of a picture height distance. To estimate the effect, the picture quality assessments were done with the pictures which include weighted basic degradations such as gradient and white noise. As the results, it is recognized that the subjective quality of weighted pictures are better than uniform one. Furthermore, the coding performance is checked for the weighted picture in frequency band limitation and contrast conversion. As the results of experiments, the possibility of 10 to 30 percent bit rate reduction is recognized.
Keyword (in Japanese) (See Japanese page) 
(in English) 4k Video System / Super Close Viewing / Subjective Quality Assessment / Coding Control / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 45, IMQ2013-1, pp. 1-6, May 2013.
Paper # IMQ2013-1 
Date of Issue 2013-05-10 (IMQ) 
ISSN Print edition: ISSN 0913-5685    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)
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Conference Information
Committee IMQ  
Conference Date 2013-05-17 - 2013-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Seikei Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Media Quality 
Paper Information
Registration To IMQ 
Conference Code 2013-05-IMQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Subjective Assessment of Super Close Viewing and its Application for the Coding 
Sub Title (in English)  
Keyword(1) 4k Video System  
Keyword(2) Super Close Viewing  
Keyword(3) Subjective Quality Assessment  
Keyword(4) Coding Control  
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1st Author's Name Kenji Sugiyama  
1st Author's Affiliation Seikei University (Seikei Univ.)
2nd Author's Name Naoya Sagara  
2nd Author's Affiliation Seikei University (Seikei Univ.)
3rd Author's Name Koji Nakamura  
3rd Author's Affiliation Seikei University (Seikei Univ.)
4th Author's Name Syou Furuta  
4th Author's Affiliation Seikei University (Seikei Univ.)
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Speaker Author-1 
Date Time 2013-05-17 13:30:00 
Presentation Time 25 minutes 
Registration for IMQ 
Paper # IMQ2013-1 
Volume (vol) vol.113 
Number (no) no.45 
Page pp.1-6 
#Pages 6 
Date of Issue 2013-05-10 (IMQ) 

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