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| Presentation | 2012-03-14 15:25 Structures of Surround Modulation eliciting Direction of Figure Selectivity -- Mathematical Analysis by SVM -- Yusuke Nakata, Ko Sakai (Tsukuba univ.)  NC2011-133 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The determination of Border-Ownership along contour is a crucial step toward figure-ground segregation. Recent physiological and computational studies have reported that the cells in V2/V4 are selective to BO, and that surround modulation underlies the selectivity. Accurate determination of BO along complex contours in natural images appears difficult for a single BO-selective cell, leading to the idea that multiple cells work simultaneously for BO perception. Here, we studied computationally with Support Vector Machine how many BO cells and what characteristics of the cells are required to determine BO accurately in natural images. The results indicate that only about twenty BO cells are required to achieve 85% correct. The results suggest that a small number of BO-selective cells are capable of determining BO in natural images as similar to human perception. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Figure/Ground Segregation / Border-Ownership / Surround Modulation / Population Coding / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 483, NC2011-133, pp. 69-74, March 2012. | |
| Paper # | NC2011-133 | |
| Date of Issue | 2012-03-07 (NC) | |
| 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 | NC2011-133 |
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| Conference Information | |
| Committee | MBE NC |
| Conference Date | 2012-03-14 - 2012-03-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tamagawa University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2012-03-MBE-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Structures of Surround Modulation eliciting Direction of Figure Selectivity |
| Sub Title (in English) | Mathematical Analysis by SVM |
| Keyword(1) | Figure/Ground Segregation |
| Keyword(2) | Border-Ownership |
| Keyword(3) | Surround Modulation |
| Keyword(4) | Population Coding |
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| Keyword(8) | |
| 1st Author's Name | Yusuke Nakata |
| 1st Author's Affiliation | Tsukuba University (Tsukuba univ.) |
| 2nd Author's Name | Ko Sakai |
| 2nd Author's Affiliation | Tsukuba University (Tsukuba univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-03-14 15:25:00 |
| Presentation Time | 25 minutes |
| Registration for | NC |
| Paper # | NC2011-133 |
| Volume (vol) | vol.111 |
| Number (no) | no.483 |
| Page | pp.69-74 |
| #Pages | 6 |
| Date of Issue | 2012-03-07 (NC) |
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