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Paper Abstract and Keywords
Presentation
Distribution of object slant in visual space and anisotropy of perceived slant
Shuichi Otsuka, Hirohiko Kaneko (Tokyo Tech.) HIP2007-137
Abstract (in Japanese) (See Japanese page) 
(in English) The distribution of surface slant are not isotropic in the visual environment. For instance, there are many surfaces slanted top away relative to the visual line like ground surfaces in the lower visual field. The purpose of this study is to measure the anisotropy of perceived slant and to investigate the relation between the anisotropy and the distribution of object slant in the visual environment. Using red-blue anaglyph stimulus, we measured the biases of perceived slants and the response times for a line stimulus presented at the three (upper, centre and lower) locations. The results of experiment showed that a line segment which under binocular viewing appears that the portions of it above and below fixation incline toward and away from the observer, respectively, in fact, is perceived such that it is oriented vertically to the line of sight. The results also showed that the response time to a line segment whose portion above incline away from the observer is slightly longer than the other. These imply that there may be the biases that work at an advantage in perceiving the slant of horizontal surfaces like ground surfaces in the lower visual field and that of vertical surfaces like walls.
Keyword (in Japanese) (See Japanese page) 
(in English) Slant perception / Anisotropy / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 369, HIP2007-137, pp. 43-47, Dec. 2007.
Paper # HIP2007-137 
Date of Issue  
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)
Download PDF HIP2007-137

Conference Information
Committee HIP  
Conference Date 2007-12-06 - 2007-12-07 
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 2007-12-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Distribution of object slant in visual space and anisotropy of perceived slant 
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Keyword(1) Slant perception  
Keyword(2) Anisotropy  
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1st Author's Name Shuichi Otsuka  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
2nd Author's Name Hirohiko Kaneko  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
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Date Time  
Presentation Time minutes 
Registration for HIP 
Paper # HIP2007-137 
Volume (vol) vol.107 
Number (no) no.369 
Page pp.43-47 
#Pages 5 
Date of Issue  

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