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Paper Abstract and Keywords
Presentation 2010-11-18 11:15
Influence of disparity-based depth propagation on surface perception
Shinpei Kasai (GSIS), Kazumichi Matsumiya, Rumi Tokunaga, Ichiro Kuriki, Satoshi Shioiri (GSIS/RIEC) MBE2010-40
Abstract (in Japanese) (See Japanese page) 
(in English) We see the edge and surface of objects in the 3D visual world. Research has revealed the mechanisms of the edge detection in the visual system. However, little is known about the mechanisms of surface perception. It is thought that a surface is formed by the propagation of disparity information to places without disparity. The present study tested this idea by conducting two experiments. In the first experiment, we measured luminance contrast sensitivity for surface perception as a function of propagation distances and spatial frequencies. In the second experiment, we quantitatively assessed the apparent configuration of surfaces and the perceptual stability of surfaces by measuring the normal direction and tangent point of surfaces. The results show that contrast sensitivity for surface perception is reduced according to stimulus distance and spatial frequency, and that the normal directions of the surfaces are overestimated and the tangent points are located far from actual positions when increasing the stimulus distance. Further, the results indicate that the perception of surface tends to be unstable when the propagation distance is longer.
Keyword (in Japanese) (See Japanese page) 
(in English) surface perception / binocular disparity / depth propagation / contrast sensitivity / spatial frequency / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 294, MBE2010-40, pp. 25-29, Nov. 2010.
Paper # MBE2010-40 
Date of Issue 2010-11-11 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 MBE NC  
Conference Date 2010-11-18 - 2010-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) BCI/BMI, NC and MBE 
Paper Information
Registration To MBE 
Conference Code 2010-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of disparity-based depth propagation on surface perception 
Sub Title (in English)  
Keyword(1) surface perception  
Keyword(2) binocular disparity  
Keyword(3) depth propagation  
Keyword(4) contrast sensitivity  
Keyword(5) spatial frequency  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Shinpei Kasai  
1st Author's Affiliation Graduate School of Information Sciences, TOHOKU University (GSIS)
2nd Author's Name Kazumichi Matsumiya  
2nd Author's Affiliation Graduate School of Information Sciences, TOHOKU University/Research Institute of Electrical Communication Tohoku University (GSIS/RIEC)
3rd Author's Name Rumi Tokunaga  
3rd Author's Affiliation Graduate School of Information Sciences, TOHOKU University/Research Institute of Electrical Communication Tohoku University (GSIS/RIEC)
4th Author's Name Ichiro Kuriki  
4th Author's Affiliation Graduate School of Information Sciences, TOHOKU University/Research Institute of Electrical Communication Tohoku University (GSIS/RIEC)
5th Author's Name Satoshi Shioiri  
5th Author's Affiliation Graduate School of Information Sciences, TOHOKU University/Research Institute of Electrical Communication Tohoku University (GSIS/RIEC)
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Speaker Author-1 
Date Time 2010-11-18 11:15:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2010-40 
Volume (vol) vol.110 
Number (no) no.294 
Page pp.25-29 
#Pages 5 
Date of Issue 2010-11-11 (MBE) 

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