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Paper Abstract and Keywords
Presentation 2010-10-15 15:20
Two-Dimensional Model of Accommodation Mechanism in Human Vision and Its Effectiveness Verification
Toshikazu Matsui (Gunma Univ.) HIP2010-59
Abstract (in Japanese) (See Japanese page) 
(in English) This research extends the one-dimensional model for the accommodation mechanism in human vision to a two-dimensional model by introducing orientational spatial frequency channels and verifies its effectiveness. Actually, the new model’s performance is clarified using two-dimensional sine waves and their digital halftone images. Consequently, the following results were obtained: (1) the new model had the ability to analyze the digital halftone images and detect their dots and signal components modulated by the dots separately; (2) the new model changed its accommodative response depending on the direction that is paid attention to as well as the dot and signal components. These results suggest that the new model can reproduce perceptual response characteristics and accommodative two-dimensional ones for digital halftone images, and that it can be an effective and plausible model for the accommodation mechanism.
Keyword (in Japanese) (See Japanese page) 
(in English) Accommodation mechanism / Two-dimensional model / Digital halftone image / sine-wave / Accommodative error / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 228, HIP2010-59, pp. 93-98, Oct. 2010.
Paper # HIP2010-59 
Date of Issue 2010-10-07 (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 ITE-HI ITE-CE  
Conference Date 2010-10-14 - 2010-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) RIEC 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2010-10-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Two-Dimensional Model of Accommodation Mechanism in Human Vision and Its Effectiveness Verification 
Sub Title (in English)  
Keyword(1) Accommodation mechanism  
Keyword(2) Two-dimensional model  
Keyword(3) Digital halftone image  
Keyword(4) sine-wave  
Keyword(5) Accommodative error  
1st Author's Name Toshikazu Matsui  
1st Author's Affiliation Gunma University (Gunma Univ.)
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Speaker Author-1 
Date Time 2010-10-15 15:20:00 
Presentation Time 25 minutes 
Registration for HIP 
Paper # HIP2010-59 
Volume (vol) vol.110 
Number (no) no.228 
Page pp.93-98 
Date of Issue 2010-10-07 (HIP) 

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