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Paper Abstract and Keywords
Presentation 2013-09-13 09:55
Theoretical Derivation of Optimal Line Space in Kanji Documents in Terms of Accommodation in Human Vision
Naoto Ishikawa, Tomomi Miyata, Toshikazu Matsui (Gunma Univ.) HIP2013-54
Abstract (in Japanese) (See Japanese page) 
(in English) We have already developed the method that theoretically derives the optimal line space to make documents the most legible in terms of accommodation by using the two-dimensional model of the accommodation mechanism. In order to verify the method’s effectiveness, this report applies the method to actual documents in which many identical Kanji characters form sentences. Consequently, from one of the model’s two kinds of responses to the Kanji documents, the following results are obtained: (1) the document style (vertical or horizontal writing) can be detected by comparing the model’s evaluation function values; (2) the theoretically ratio of the optimal line space length to the character height is nearly equal to the conventional one; (3) the optimal line space length changes depending on font size in the same way as the conventional results. These results suggest that the proposed method is effective in deriving the optimal line space to make documents the most legible and that the optimal line space can be closely related to the accommodation mechanism.
Keyword (in Japanese) (See Japanese page) 
(in English) Accommodation / Two-dimensional model / Kanji document / Optimal line space / Character height / Font size / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 216, HIP2013-54, pp. 23-28, Sept. 2013.
Paper # HIP2013-54 
Date of Issue 2013-09-05 (HIP) 
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)
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Conference Information
Committee HIP  
Conference Date 2013-09-12 - 2013-09-13 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT Keihanna building 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Eye Movement and Perception, Control and Measurement of Eye Movement, Accommodation, Pupil, etc. 
Paper Information
Registration To HIP 
Conference Code 2013-09-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Derivation of Optimal Line Space in Kanji Documents in Terms of Accommodation in Human Vision 
Sub Title (in English)  
Keyword(1) Accommodation  
Keyword(2) Two-dimensional model  
Keyword(3) Kanji document  
Keyword(4) Optimal line space  
Keyword(5) Character height  
Keyword(6) Font size  
1st Author's Name Naoto Ishikawa  
1st Author's Affiliation Gunma University (Gunma Univ.)
2nd Author's Name Tomomi Miyata  
2nd Author's Affiliation Gunma University (Gunma Univ.)
3rd Author's Name Toshikazu Matsui  
3rd Author's Affiliation Gunma University (Gunma Univ.)
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Date Time 2013-09-13 09:55:00 
Presentation Time 25 
Registration for HIP 
Paper # IEICE-HIP2013-54 
Volume (vol) IEICE-113 
Number (no) no.216 
Page pp.23-28 
#Pages IEICE-6 
Date of Issue IEICE-HIP-2013-09-05 

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