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Paper Abstract and Keywords
Presentation 2021-10-22 14:00
Dependence of Locus of Attention on Depth of Field under Retinal Illuminance Constancy Condition -- Investigation Using Extended Depth of Field (EDoF) Lenses --
Genta Higashi, Yuichiro Orita, Shoko Hira, Masayuki Kashima (Kagoshima Univ.), Yasushi Miyajima, Kazutoshi Kato (ITOH Opt), Sakuichi Ohtsuka (ICT) HIP2021-45
Abstract (in Japanese) (See Japanese page) 
(in English) By using extended depth-of-field (EDoF) lenses (eyeglasses), we became able to measure the relationship between depth-of-field and gaze position, i.e., locus of attention, under binocular stereopsis conditions with constant retinal illumination. We employed a presentation pattern with three levels of grid points in the depth direction and four rows of grid points in the left-right direction, and placed three stimuli (cylinders) at the same time in one trial (total of 24 ways). Observers were required to report their first gaze position immediately after opening their eyes. Number of observers were ten. Experimental results suggest that (1) average of locus of attention was limited to only the near right-hand side in the reference condition (wearing no power lenses), whereas (2) average of locus of attention shifted to the far right-hand side dominantly and simultaneously expanded to the near right- and left-sides when wearing eyeglasses with the EDoF lens. In addition, the results suggest that (1) this phenomenon can be explained by the Japanese Road Traffic Law (left-hand traffic), and (2) the effect in wearing the EDoF lenses provides more room for perceptual processing ability to cope with spur-of-the-moment situations.
Keyword (in Japanese) (See Japanese page) 
(in English) Depth of Field / Extended Depth of Field (EDoF) Lenses / Locus of Attention / / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 211, HIP2021-45, pp. 81-86, Oct. 2021.
Paper # HIP2021-45 
Date of Issue 2021-10-14 (HIP) 
ISSN Online edition: ISSN 2432-6380
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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 2021-10-21 - 2021-10-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2021-10-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dependence of Locus of Attention on Depth of Field under Retinal Illuminance Constancy Condition 
Sub Title (in English) Investigation Using Extended Depth of Field (EDoF) Lenses 
Keyword(1) Depth of Field  
Keyword(2) Extended Depth of Field (EDoF) Lenses  
Keyword(3) Locus of Attention  
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1st Author's Name Genta Higashi  
1st Author's Affiliation Kagoshima University (Kagoshima Univ.)
2nd Author's Name Yuichiro Orita  
2nd Author's Affiliation Kagoshima University (Kagoshima Univ.)
3rd Author's Name Shoko Hira  
3rd Author's Affiliation Kagoshima University (Kagoshima Univ.)
4th Author's Name Masayuki Kashima  
4th Author's Affiliation Kagoshima University (Kagoshima Univ.)
5th Author's Name Yasushi Miyajima  
5th Author's Affiliation ITOH OPTICAL INDUSTRIAL CO.,LTD (ITOH Opt)
6th Author's Name Kazutoshi Kato  
6th Author's Affiliation ITOH OPTICAL INDUSTRIAL CO.,LTD (ITOH Opt)
7th Author's Name Sakuichi Ohtsuka  
7th Author's Affiliation International College of Technology, Kanazawa (ICT)
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Speaker Author-1 
Date Time 2021-10-22 14:00:00 
Presentation Time 25 minutes 
Registration for HIP 
Paper # HIP2021-45 
Volume (vol) vol.121 
Number (no) no.211 
Page pp.81-86 
#Pages
Date of Issue 2021-10-14 (HIP) 


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